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AAAAAAAhhhhh!! no est = running engine? help!

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Old 07-13-2011, 06:30 AM
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Car: 87 z28 stock
Engine: 305 tpi
Transmission: 700r4
AAAAAAAhhhhh!! no est = running engine? help!

i am very stumped. why would it be when i disconnect the est bypass the car runs fine but when i hook it back up the car dies as soon as i put it in to gear?? all i want is to drive this car.im starting to think my car doesn't like me. does this sound like a dizzy issue? ecm? i have no clue. not pulling any codes either. i cant run the car with the est bypass disconnected. heeeellllllppppp!!!!!
Old 07-19-2011, 03:39 PM
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Car: 87 z28 stock
Engine: 305 tpi
Transmission: 700r4
Re: AAAAAAAhhhhh!! no est = running engine? help!

does anyone have any ideas on this? im thinking i may have a bad ICM or pick up coil. just fishing for ideas here.
Old 07-19-2011, 08:33 PM
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Car: 1992 z28 Purple Haze
Engine: 5.7L Tuned Port Injection
Transmission: 700R4
Axle/Gears: 3.23 both spinning
Re: AAAAAAAhhhhh!! no est = running engine? help!

well, certainly it could be a distributor problem. How many miles on it? I have had to replace distributors in an 86 and a 92 z28 because of similar issues. I would think if it were the ECM you would have issues in other areas too.
Old 07-20-2011, 05:48 AM
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Car: 87 z28 stock
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Transmission: 700r4
Re: AAAAAAAhhhhh!! no est = running engine? help!

i have thought about just changing the distributor and killing 2 birds with one stone. between the price of a delco ICM and pick up coil, another 10$ will get me a new dist. and it will be easier to install.
Old 07-20-2011, 08:41 PM
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Car: 1992 z28 Purple Haze
Engine: 5.7L Tuned Port Injection
Transmission: 700R4
Axle/Gears: 3.23 both spinning
Re: AAAAAAAhhhhh!! no est = running engine? help!

I did that. Went to O'Reilly Auto Parts and got a brand new one for $139.00 and it was complete, cap, rotor, and module installed. The brand was Richporter Industries. It's no MSD, but works just as well for half the price.
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