"CammedCTSV" (cammedctsv)
10/24/2015 at 17:22 • Filed to: None
0
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"CammedCTSV" (cammedctsv)
10/24/2015 at 17:22 • Filed to: None | 0
| 10 |
Any members in North Florida?
My 85 died, so I replaced the following:
Fuel pump/filter
Fuel regulator now at 50 psi
Idle control valve
Distributor
Ign coil
If anyone knows of a TPI doctor near Jacksonville, FL please let me know
Urambo Tauro
> CammedCTSV
10/24/2015 at 17:39 |
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Many times when people post lists of replaced parts, it’s because a proper diagnosis never took place.
Please tell me you weren’t throwing parts at the problem...?
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CammedCTSV
> Urambo Tauro
10/24/2015 at 17:52 |
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I have ohm’ed every sensor, verified fuel pressure, no PCM codes, verified injector pulse with noid lights, new grounds to the battery, and a new distributor which includes the pickup coil and injector module.
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Urambo Tauro
> CammedCTSV
10/24/2015 at 17:55 |
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But what are the symptoms? Does it crank? Does it start? Does it stall?
I don’t want to give you the impression that I’m some kind of Corvette expert, but I’d love to help move the conversation forward. However, we need more information than “it died”.
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CammedCTSV
> Urambo Tauro
10/24/2015 at 18:20 |
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It cranks, runs for one second and dies. I just did a leakdown test on the fuel rail, and I think I have a bad injector. It goes from 50 psi to 0 in 12 seconds.
Does anyone know how long pressure is supposed to remain in the rail after shutdown?
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Urambo Tauro
> CammedCTSV
10/24/2015 at 18:51 |
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I’ve heard that some newer vehicles bleed off fuel pressure after shut-down, but I don’t think that’s supposed to happen in your case. (Maybe you should check with a Corvette forum before taking my word for it, though.)
At any rate, I do think you’re on the right track...
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CammedCTSV
> Urambo Tauro
10/24/2015 at 18:53 |
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The corvette guys said I should be above 40 psi for at least a half hour... :(
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Urambo Tauro
> CammedCTSV
10/24/2015 at 19:06 |
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Bummer. Injectors aren’t exactly cheap. Any chance they’re worth cleaning? Maybe a chunk of debris holding one open?
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CammedCTSV
> Urambo Tauro
10/24/2015 at 19:08 |
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These look like the original injectors, they are an ancient and unreliable Bosch, but a new set looks to be under $100
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Urambo Tauro
> CammedCTSV
10/24/2015 at 19:18 |
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$100 for a full set? I hope they’re not bargain-barrel cheap crap. That’s a steal!
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CammedCTSV
> Urambo Tauro
10/24/2015 at 19:43 |
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Just Bosch replacements, GM has only used 3 styles in the past 40 years