Question about 1985 Chevrolet Corvette

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85 corvette wont start

Problem started with bad fuel in tank. flushed it. now it will only sputter when turned over. checked plugs then distributor then fuel pressure and cleaned injectors; everything good. Now what?

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  • texasflood_2 Jan 11, 2009

    maintains good fuel pressure so filter must be ok

  • texasflood_2 Jan 15, 2009

    tuned port fuel injected

  • texasflood_2 Feb 13, 2009

    I bought a test kit for the injectors (which yes, I did clean) and none of the injectors are getting an electric pulse.

  • texasflood_2 Feb 26, 2009

    I've been told that there is a module in the distributor, that works in parallel to the rotor in order for the timing to be right with the injectors, that might be bad or... do you know exactly where this is?

  • texasflood_2 Apr 08, 2009

    I had growing suspicion that the testing tool that I bought wasn't working and tested it on another vehicle that I knew the injectors were spraying on, the tool didn't indicate pulse then either so most likely the injectors are firing and it has to do with the computer shutting down after initial engine firing.

  • texasflood_2 Jun 12, 2009

    Alright guys I think I've got this thing figured out. What happens is my engine starts solely on the fuel injected directly into the air intake manifold by the cold start assembly. Then once that fuel is consumed; I stall. I'm 80% sure my injectors are clean and functional what I'm not sure of is if my computer is relaying signal to the injectors. Thanks for the advice you have provided so far. I'm glad I'm now not the only one stumped by this now.



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I had the exact same problem with mine. After replacing nearly everything i took it to a shop today to learn that I had a bad wire on the back of the distributor and the new fuel pump i installed from autozone was faulty and not providing enough pressure.

Posted on Apr 28, 2009

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Have you replaced the Fuel Filter?

Posted on Jan 11, 2009

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  • Travis Humphries
    Travis Humphries Jan 11, 2009

    Am I correct in saying that this Injection System is Muti Port or Tuned Port?

  • Travis Humphries
    Travis Humphries Jan 16, 2009

    Ok, Have you checked the Injection System, Since you had bad fuel you could have gotten it up into the Injectors. As a Test Get a Can of B12 Chemtool and Add to the Fuel at Half a Tank. This should help Clean out the Injectors.

  • Travis Humphries
    Travis Humphries Feb 13, 2009

    If none of them are Getting a Signal, It will have to be a Relay, Fuse, Or the Computer for this Problem. Having the Bad Fuel Problem could have put a Strain on the System trying to Pull the Bad Fuel up to the Injectors. Check those Items. Hopefully it will Fire after you locate this Problem and you will not need to replace the Fuel Pump after all. Let me Know what you find!



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If by "bad gas" you mean dirty or wet (water or alcohol), the fuel filter and/or lines may be clogged or holding water...or the injectors could be clogged with dirt.

Hearing the pump run doesn't mean that adequate pressure is reaching the engine...a fuel rail pressure tester will tell you if the pump and relay are doing their jobs properly.

Test for spark to rule out ignition circuits and module...Lay one plug wire near a good ground and have someone turn the key for a couple of should see a long spark jump to ground.
If no spark, the ignition module, distributor pickup, and crankshaft position sensor are the prime suspects.

> As a test ONLY, I would back out a plug and spray a short-shot of starter fluid into the cylinder, replace the plug (quickly...starter fluid evaporates pretty fast) and give a crank.
If it sputters, it's definitely in the fuel delivery...and I would start with a fuel filter.

***Don't forget to VOTE for the guys who take an interest in helping!

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