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Car Probs, need advice

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Old Jan 11, 2009 | 08:33 AM
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Default Car Probs, need advice

Recently, my car has been running fine, then as I come to a stop it would die. No problem restarting it. The problem got worse. I thought a re-tune would fix it. So, I had that done. My tuner (JF) thought my MAF sensor was going bad. It made total sense. I replaced it and now, when the car warms up, as soon as I let the rpm's drop it wants to die. When I try to rev it up to keep it from stalling nothing happens. It's also getting harder to start.

So, now I am at a real loss. The air filter is spotless. The gas is good, and it runs great as long as I keep the rpm's above 3000. Any advice would be much appreciated.

TIA, JJ
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Old Jan 11, 2009 | 08:55 AM
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What are your mods, if any?
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Old Jan 11, 2009 | 09:12 AM
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Originally Posted by Craigster05
What are your mods, if any?

cam, ported tb/intake, vararam, 160t, full exhaust
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Old Jan 11, 2009 | 09:21 AM
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Throwing any codes at all?
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Old Jan 11, 2009 | 09:30 AM
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Originally Posted by nightmel
Throwing any codes at all?
No, I wish it would. Then I would at least have a clue.
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Old Jan 11, 2009 | 09:31 AM
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RENNtech:

Check for vacuum leaks, with a cam they may not be evident at higher RPM's, but at lower RPM's it can stall the engine. I don't know how this works with all the computer hardware, all my experience is old school.
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Old Jan 11, 2009 | 09:42 AM
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Originally Posted by Red06Vette
RENNtech:

Check for vacuum leaks, with a cam they may not be evident at higher RPM's, but at lower RPM's it can stall the engine. I don't know how this works with all the computer hardware, all my experience is old school.
Thanks, I'm open for any advice. I'll definitely check it out.
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Old Jan 11, 2009 | 09:46 AM
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You say it ONLY does it after it warms up. So sounds like it is in closed loop when this happens which tells me a sensor being the problem. You replaced the MAF already, Maybe MAP or IAT sensor.
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Old Jan 11, 2009 | 09:54 AM
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Originally Posted by nightmel
You say it ONLY does it after it warms up. So sounds like it is in closed loop when this happens which tells me a sensor being the problem. You replaced the MAF already, Maybe MAP or IAT sensor.
Exactly, I'll check those too. Thanks a lot!!!. . .
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