Quote:
Originally Posted by TechGuru
My car starts fine cold then once it gets up to operating temp at idle it will start to flood itself, choke and die. I know this because #1 I have looked down the intake afterwords and there is a pool of gas in the bottom (verified by Q-Tip on a stick) and #2 because I have watched the duty cycle while it dies and it shows it going richer and richer before it dies.
I would assume the EHA is what would be increasing the flow to flood it but I don't think the EHA itself would be bad so much as something that tells that EHA what to do would be bad. What do I need to check? Which sensors tell it what to do?
Also, would disconnecting the EHA just to be able to drive the car be safe for the car if I try to tune the lambda to 50% with it disconnected?
The only other thing I can think of is if something is triggering the cold start valve or the cold start valve is leaking or the CIS unit is leaking out the bottom. But being that it runs fine cold, I think it's a electronic issue.
Is there any known issue and cause of this problem?
I have tried adjusting the lambda leaner but seems to only be a temporary fix.
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If you suspect the cold start valve why not unplug it when the car is near its operating temperature to see if the problem persists?
The car can still run with EHA uplugged provided the mixture has been adjusted rightly before that. Once the basics are messed up it's hard to get the car even started.
Don't throw money just yet. Try to have a fuel pressures test first. The car starts alright so the CIS unit shouldn't be leaking. You can still read the lambda meaning the O2 sensor still works.
03-18-2012, 08:55 PM
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