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The Whole Script?

Tuesday, July 5, 2016

I haven’t been writing about spam here in a while, but today was slightly noteworthy. I received just 4 of them, 1 in kanji characters, 1 short and sweet “THanks for sharing, I am glad I read this.” and two that must have sent out the whole script instead of random selections from it:

I’ve een surfing online more thn 2 hours today,yetI
never found any interesting article like yours.
It’s pretty worth enough for me. In my opinion, if all webmasters and bloggers made good content
as you did, the net will be much moire useful than ever before.|
I couldn’t refrain from commenting. Perfectly written!|
I will right away grab your rss feed as I can not in finding your e-mail subscription hyperlink or e-newsletter service.
Do you have any? Kindly let me realize in order that I
could subscribe. Thanks.|
It is perfrct time to make some plans for the future and it’s time to be happy.
I have read this post and if I could I desire to suggest you some interesting things or suggestions.
Maybe you could write next articles referring to this article.
I desire too read even more things about it!|
It’s appropriate tiome to make a few plans for the longer tem and it’s time to be happy.

Tagged: Spam

P0010

Saturday, July 2, 2016

or: “A” Camshaft Position Actuator Circuit (Bank 1)1

After breakfast at Hardee’s and weekly grocery shopping at Krogers in the Sonata we came back home and got in the Miata for a drive. Before getting in I popped the hood and unhooked the electrical connection to the VVT oil control valve, disabling the system. As expected, as soon as I started the car the CEL came on, and stayed on.

Cruising out of the neighborhood the VTCS surge (formally the VVT kick) happened right around 3k RPM as expected and virtually disappeared after warmup as expected. What didn’t happen as expected was the ugly exhaust note at full throttle. Also missing was the slightly out of tune feeling at higher RPMs. My highly un-calibrated butt dyno reported that it was accelerating like a normal Miata, only with slightly less power. Although the less power thing might have been influenced by yesterday’s chart…

Part way through the drive, as Donna was buying some fresh peaches at a local stand, I jumped out and reconnected the wire to the VVT system. Sure enough, as I accelerated away briskly the annoying sound and sluggishness returned. When got back home, I dropped Donna off and did one more set of runs down a local street, one connected and one not just to be positive.

Well, that confirmed it, the culprit is in the VVT system somewhere. The only things left I can think of are the actuator on the camshaft itself, a lack of oil pressure to the system or it is in the ECU itself, all of which are above my meager skills. This leaves two options; 1) take it to a professional or B) disconnect the system and live with the CEL on all the time.

Started up, went down, still down.
Miata Top Transitions since 06/25/15: 189

1.Back in the garage when I read the fault code, instead of the P0012 I expected it was a P0010. Another VVT related code, but the obvious one when pulling the wires off the valve to disable the system.
Tagged: Miata Service

VVT or VTCS?

Friday, July 1, 2016

VVT Dyno Runs

I was led to the VVT system by the CEL fault code that the car keeps throwing, P0012, which translates to “A” Camshaft Position – Timing Over-Retarded because the VVT controls the intake (A) cam. The image above is from the fine folks at Flying Miata who actually dyno tested the effects of the VVT system; the blue lines show the system operating and the red lines show it disconnected. Looking at the lines there are no noticeable bumps at any RPM value, they are relatively parallel with the only difference being that the numbers are higher with. than without.

Well, it turns out my idea of the VVT kick, that feeling of a surge of power at certain RPM, is not really from the Variable Valve Timing system after all. With further research I now find out it is from something called the Variable Tumble Control System (VTCS) that was created to help emissions at low RPMs. A valve closes part of the intake path, increasing the velocity of the intake charge. The butterflies are closed if two conditions are met: the coolant temperature is less than 65C and the engine RPM is less than 3000.

I’ve always sort of felt that this problem only occurs when the car is fully warmed up, so I wonder if maybe those butterflies stay closed once the car is warm and that is what is causing the slight out of tune feeling at higher RPMs. The only problem with this theory is that the VTCS has its own fault code, P2006, and I’m not getting one of those.

I guess as an elimination test for the VVT system I could go ahead and pull the electrical connector off the oil control valve, thereby disabling it and drive the car until it gets warm and see if my symptoms are still there. Maybe tomorrow.

Tagged: Miata Service

#%&!@#$

Tuesday, June 28, 2016

Subtitle: The Check Engine Light Comes On Again

Monday afternoon I backed the Emperor underneath the metal awning in the driveway and raised up the driver’s side of the car as high as my compact aluminum jack could go, propping it up with jack stands. The goal was to change out the mid-pipe and muffler with the OEM pieces borrowed from John. Listing from front to back there was one butterfly shaped brace with six 21mm nuts holding it on, then 4 more cross braces at various intervals with two 21mm nuts apiece and one cross brace with, for whatever reason, four 19mm nuts.

It looked like I could remove a couple of the regular cross braces and leave a couple on, but that big 6 bolt brace was definitely going to come off. Because of my limited clearance under the car for hammer swinging and my wimpy foot long 3/8″ breaker bar I managed to get only one of the six to loosen any after 10 minutes of struggle. So doing what any non-mechanically inclined individual would do, I gave that task up. I knew I could change mufflers, so I did take off the Racing Beat and put the stock one on.

Dropped the car back onto the ground and took a drive around the neighborhood. Quieter for sure, so I took it out a bit further and stomped on it. And while it was quieter overall than the Racing Beat, once over 4000 RPM it had still had that ugly undertone.

When I got back home I went and got the Kindle with the Torque app installed on it. Turns out after monkeying with around with the app for a while I had discovered it can log real time data, so I got back in the car and took it back out for a ride. Around to the first spot I can get on it and I do a rolling start in second gear. Run it up to almost redline before shifting into 3rd and keeping on it until near redline again before having to coast to the stop sign ahead.

Turn right readying to make another run through the gears and I notice my old friend the Master Caution1 light has illuminated. Hmmmm, I figure what the heck, I’m logging the drive and I’m less than a mile from home – I mash the gas pedal and go. High speed through 2nd and 3rd, u-turn, repeat the pattern and return to the hanger2.

After a couple tries I figured out the right way to transfer the log to the PC. It is comma separated value format so I open it up in Excel. Blank column, Time, Blank, Blank, Blank, G(x), G(y), G(z), some more blank columns and some more random parameters. Turns out that even though I had a “dashboard” set up with dials of the parameters I wanted to record you have to actually add what you want to the list of PIDs to be measured, what I got the first time are some sort of default measurements.

I select Time, Engine Temperature, Engine RPM, Vehicle Speed and Timing Advance to be logged. CEL be damned I go for a little longer drive running it through the gears to redline six to eight times before returning home. I dumped the log file to the PC and attached to an email to Steve at Panic. We’ll see what he has to say.

1. The Master Caution light in an aircraft is front and center where the pilot can see it immediately. It alerts him to take a look around the cockpit at the other 100 or so lighted buttons for the one that will tell him what is wrong with the aircraft. The Check Engine Light in the car equivalent to this; we just have to wait until we get home and read the code.
2. Continuing the aircraft analogy.
Tagged: Miata Service

62,000 Micro-inch Pounds of Torque

Saturday, June 25, 2016

Red Valve Cover II

After the last time I put the valve cover on it ended up leaking, so I thought I’d just get a new gasket and start over. Relying on my vast mechanical experience, I also thought maybe because last time I just tightened the eleven bolts holding it down by feel I may have under or over tightened them. The cure to hopefully not create another leaker maybe would be to maybe actually read the manual and torque the bolts to the proper value.

The specifications I have, thanks to a friendly Miata.net Forum member, 68.6 to 96.3 in/lbs, but the torque wrench to use, not so much. When I started looking for an in/lb torque wrench I was surprised at how much they wanted for them and I really didn’t want to spend that kind of money on something I might not use very much. I thought maybe I might be able borrow one. I could have bought one off Amazon for $22, but how good could it be for that price?

I had a line on one from a co-worker, but he couldn’t find his or forgot or something or other, so that was a bust. Today we were at a birthday part at a friend’s house and I asked a fellow MMC member who as there too if he had an in/lb torque wrench and if so could I borrow it. He did, so I told him I’d call later to see about getting it. When I called, he told me his was a beam type wrench, but it was for a lot higher range than I needed because the gradient marks were 50 in/lbs apart. That meant I would have to find the spot a little more than halfway between mark number one and mark number two. And even if I did, how accurate would that rating be with it so close to the bottom of the scale?

Figuring I had wasted enough time and effort chasing the whole borrowing thing, it was time to bite the bullet and just buy one., So I did some internet shopping of the local places and there was only one auto parts store that one in stock, but they wanted $120 for it. So I checked the local BBHIW stores and Home Depot had one for $70. I am now the proud owner of a Husky 20-200 in/lb click style torque wrench.

If you compare the above photo of the red valve cover with the one from earlier this month, you’ll notice that while I had the cover off this time I did some more painting on it – the lettering is now black.

Yesterday on the way home from work the Purple Whale slipped past the 62,000 miles.

Tagged: Miata Service, Sonata Mileage

25 Years Ago – Summer 1991

Saturday, June 25, 2016

If It Can’t Be Done on Wheels…

– by Member Terry Carr, Memphis, Tennessee

I had been reading about the Miata since they were first offered for sale in this country. I knew I wanted one, but probably for many of different reasons than a lot of your readers who apparently have a long relationship with sports cars.

I grew up in the Fabulous Fifties – you know, sockhops, car dances, drive-in movies, and hamburger joints. We were a more mobile society back then. We felt that if you couldn’t do it on wheels, it probably wasn’t worth doing at all. It was about the time I fell in love with the 1955-56 Ford Thunderbird. I pressed my nose to many a showroom glass until the fog from my heavy breath obscured my view. The idea of a lift-off hardtop for a convertible was more than I could deal with at the time. I swore that one day I would own such a car.

Well, that was a long time ago and though I have owned many convertibles since I was sixteen, I never got my T-bird. A few months ago I finally sold my classic 1968 Pontiac Bonneville convertible complete with a 400 cubic inch engine equipped with tri-power (that’s 3-deuces or a six-pack to you younger folks). I bought that car new at the insistence of my bride. Kay and I stood in the empty second garage we had built to house my toys (the other, a classic mahogany planked inboard motorboat) and cried when that car left. We get attached to things. I know it’s silly, but that car had a lot of memories attached to it.

My wife informs me that afterwards, my lip stuck out a lot, I got moody and became somewhat disagreeable. You see, that was the first time I had ever been without a ragtop. It was terrible. And, since I had given up motorcycles some years before, I had no panacea.

That sets part of the stage. Now, for the other part of the story. As I said at the beginning of this article, I had been following the progress of the little car from the start. I must confess however that my initial preoccupation with the Miata was the lift-off hardtop. I find it interesting that a recent Miata Magazine article eluded to some initial discussion regarding whether to even produce a hardtop. I’m glad they did, as I am sure Mazda is now.

I have been dickering with car salesmen all my life. Heck, I can even remember when buying a car used to be fun. That’s how old I am. I know what a car costs the dealer. Consequently, I try not to pay too much over dealer invoice when I buy. When the Miata first came out, I went to a local dealership and made an offer on a 1990.

At the time, I think they were selling in Memphis for about $3,000 over the window sticker price. The salesmen rolled around the floor, giggled, guffawed, and generally cut up when I told them I’d pay a thousand dollars over dealer invoice for a new Miata. The sales manager even came out of his office to get a look at the “weirdo.” He said it would be a cold day in you-know-where before I would buy one at that price. I remarked that it probably would, remembering how few convertibles are sold in that kind of weather, and left.

Over the ensuing months, I made periodic stops at the dealership and kept hammering away at the sales price. You see, the secret to buying a car is to make sure that they want to sell it more than you want to buy it. If and when the pendulum swings the other way, you are a goner. Once I walked out of a showroom over a hundred dollar difference just to make a point. Steve, the young salesman whom I had thoroughly frustrated over the months and felt truly sorry for, followed me out into the parking lot exclaiming, “Mr. Carr, you know you want the car. It’s only a hundred dollars!”

I looked at the young man and said, “When you get to be fifty years old, you learn one valuable lesson if you’re lucky, which will extend your life and end most frustrations.”

“What’s that?”

“You can’t always have everything you want.”

It wasn’t enough that I wanted a particular price – there were other considerations. It must be RED, have limited slip differential, and have a hardtop. Everything else was negotiable. Well, almost everything. There was one other small detail. Demand was fairly great in Memphis, so dealers were driving in cars from outlying dealerships. I once test drove a Miata that had over 300 miles on the speedometer. When I buy a new car, I expect it to be new; NO MILES and as few people under the steering wheel as humanly possible. Yea, I know, weird — but my car had to have less than 12 miles on it.

The phone rang a few weeks before Thanksgiving, just a month after I sold my classic Pontiac convertible. They met my price and the car was being off-loaded in California. It arrived at the dealership about three weeks later (on a transport truck) and I took delivery with just nine miles showing on the speedometer. It was a “B” package, which suited me just fine. I would have lived without the air conditioner, but Kay couldn’t have.

To say I love my car would be a gross understatement. I have experienced none of the problems mentioned in your magazine columns. Of course, I still have less than 1,500 miles on it; the hardtop is still in place, and the cloth top has never been out of its boot. But, I have put it through its paces. I am impressed, to say the least. I have a hard boot coming from Rod Millen and have already installed mud guards and door sills. When I first got my Miata, I couldn’t wait to have one like everyone else’s. Now I want mine to be different from everyone else’s. As time and money permits, I will continue to add trinkets.

My last teenager leaves home in a few months. Then Kay and I will strike out for parts unknown, taking advantage of some of your travel tips in the magazine. Until we see you on the road, take care and drive safely. You can find my red 1991 Miata easily. The Tennessee license plate reads, “TC’S MX5.”

Terry Carr is a clinical counselor working at a state college in Memphis, Tennessee. His wife, Kay, is an elementary school teacher.

Copyright 1991, Miata Magazine. Reprinted without permission.

 

Tagged: Blast From the Past, Miata Club of America Magazine

Bonus Time

Friday, June 24, 2016

Sneak Peek 2a - Valve Train Issues

Walked by the neglected Moss Motoring Challenge list on the desk yesterday and noticed that the cutoff date for the second sneak peek photos was fast approaching. July 1st was just next Friday and because of the timing and exhaust issues on the Emperor we really haven’t been very active Challenge-wise. Right now the Miata is sitting in the garage with the valve cover off so I can change the cover gasket which is leaking (from the last time I had it off.) The perfect opportunity at least for the first one of the possible two sneak peeks was just waiting for us in the garage.

Fingers crossed I’ve got the VVT timing issue solved, but now I have to figure out the ugly exhaust sound. Almost 2 months ago Rudy brought me his Borla muffler and a spare stock muffler along with a stock mid-pipe from John. I picked the Borla, but it turns out that was the wrong choice. So guess what Donna and I did Tuesday evening? Right, drove the Sonata to John’s house and re-borrowed the stock mid-pipe and muffler.

Plan for tomorrow is to put the valve cover back on, with a new gasket this time and on Sunday maybe start on the exhaust issues. The muffler should be no real problem, while the mid-pipe is a whole ‘nother story, as it has about a four undercarriage braces that need to come off first. Then the two bolts on the mid-pipe upstream near the header (and higher temperatures) that haven’t yet been removed, so they probably will be harder to break loose and require more hammering that ones at the muffler a few weeks ago.

Motoring Challenge Points 1, Approx Miles Driven 0
Totals So Far: 58 points & 970 miles
Tagged: Miata Service, Miatatude, Motoring Challenge
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sturgeon’s law

"Ninety Percent Of Everything Is Crap"
Derived from a quote by science fiction author Theodore Sturgeon, who once said, "Sure, 90% of science fiction is crud. That's because 90% of everything is crud." Oddly, when Sturgeon's Law is cited, the final word is almost invariably changed to 'crap'.

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1) A Riverboat Shaped Welcome Center in Greenville 1) A Riverboat Shaped Welcome Center in Greenville, MS. 2) Hot and Cold Water Towers in Ruleville, MS. 3) And one last Eiffel Tower in Paris, TX, from this morning on my way out of town.

#roadsideamerica #landlockedriverboat #greenvillems #hotandcoldwatertowers #rulevillems #eiffeltowerwithacowboyhat #paristx

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