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05-17-2013 02:20 PM #46
perhaps a silly question but.... you didn't install the coil backwards didja? We've all done it!
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05-17-2013 02:22 PM #47
Just one of my usual questions, Randy. Do you have a good ground from the engine to the chassis, battery to chassis, ECM ground to chassis, etc.??? EFI systems and computer controlled cars must have a good ground!!!!
Actually sounds like a weak coil, I'm certainly not claiming any expertise on electronically controlled engines, still a neophyte on them but I have learned that good grounds are essential.Yesterday is history, tomorrow is a mystery, Live for Today!
Carroll Shelby
Learning must be difficult for those who already know it all!!!!
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05-17-2013 02:39 PM #48
It's the stock '92 Mustang coil. I'm using one of those pocket circuit testers with the little probes and the sweep needle. My checks have been both with volts & ohms....
I'm certainly capable of a backwards install, Mike but this time the coil plug only goes on one way.
Yes, Dave, I've checked all those grounds and they seem to be good. Perhaps I should spring for a new coil and see if problem is solved.....not sure what else to do at this point.....
Thanks for the input, guys!!!! Always MUCH APPRECIATED!!!!"It is not much good thinking of a thing unless you think it out." - H.G. Wells
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05-17-2013 02:47 PM #49
Yesterday is history, tomorrow is a mystery, Live for Today!
Carroll Shelby
Learning must be difficult for those who already know it all!!!!
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05-17-2013 02:51 PM #50
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05-17-2013 03:02 PM #51
I've got a Mallory that you can try but I'm sure time is becoming critical and shipping will be slow...
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05-17-2013 05:23 PM #52
- Join Date
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- Car Year, Make, Model: 40 Ford Deluxe, 68 Corvette, 72&76 K30
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Ryan
1940 Ford Deluxe Tudor 354 Hemi 46RH Electric Blue w/multi-color flames, Ford 9" Residing in multiple pieces
1968 Corvette Coupe 5.9 Cummins Drag Car 11.43@130mph No stall leaving the line with 1250 rpm's and poor 2.2 60'
1972 Chevy K30 Longhorn P-pumped 24v Compound Turbos 47RH Just another money pit
1971 Camaro RS 5.3 BTR Stage 3 cam, SuperT10
Tire Sizes
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05-17-2013 07:06 PM #53
It may be the TFI coil. Known to go bad and cause a no start. '92 Mustangs did use that system. IIRC it is attached to the distributor but it has been a while.You don't know what you've got til it's gone
Matt's 1951 Chevy Fleetline- Driver
1967 Ford Falcon- Sold
1930's styled hand built ratrod project
1974 Volkswagen Super Beetle Wolfsburg Edition- sold
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05-17-2013 07:08 PM #54
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05-17-2013 08:57 PM #55
Well, fellas, I've got a shiny new coil but still a no start!
I still have weak spark at the distributor. I've been googling my butt off and scouring over tons of Mustang forums & threads and it seems "highly possible" that my TFI module (bolts to dizzy) may be bad.....looks like I'll probably be throwing some more money at it tomorrow....."It is not much good thinking of a thing unless you think it out." - H.G. Wells
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05-17-2013 11:21 PM #56
Perhaps I'll attempt some of these tests on my TFI before I run out and buy one....
How to Solve an EFI No Start"It is not much good thinking of a thing unless you think it out." - H.G. Wells
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05-18-2013 05:02 AM #57
Randy,
I totally forgot that you were using the stock Mustang electronics. The module on the side of the distributor is almost certainly the culprit, and they can go out in a heartbeat. I suspect that you've found your culprit. One tip - there's a "special tool" that's really just a very thin walled socket with a t-handle to get the two retaining screws loose that hold it in place. It's worth the six or seven bucks, or you'll be grinding down a socket. And don't forget the di-electric paste when you put the new one on, or the new module will have a short life.Roger
Enjoy the little things in life, and you may look back one day and realize that they were really the BIG things.
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05-18-2013 06:10 AM #58
Thanks, Roger! Sounds like a likely culprit to me, too!! I've also read about the "tool". Looks like the TFI module comes in a wide range of prices and some suggest replacing the PIP, too. I've even seen rebuilt distributors for the price of some of these separate parts.......obviously, the idea of a "budget swap" went out the window a while back!!"It is not much good thinking of a thing unless you think it out." - H.G. Wells
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05-18-2013 06:24 AM #59
Roger
Enjoy the little things in life, and you may look back one day and realize that they were really the BIG things.
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05-18-2013 06:34 AM #60
My only real experience with Thick Film Ignition (TFI) was with a friends pickup truck, that thing seemed to just eat the module on the side of the dizzy. He changed so many of them he kept one in the glove box! One night we were headed home when the truck just died.. we popped the hood and I had him turn it over while I watched for spark at a plug wire. There wasn't any but I did see something spark where it shouldn't have! Turns out one of the injector wires had rubbed bare against the fuel rail! We taped it up and the truck never "ate" another module.. So any short under the hood seemingly will take out that module. Keep that in mind when working with the wiring and maybe disconnect the module first to protect it.
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