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DoctorDex · 08-01-2007, 07:59 PM

Back from the dead.

It has been very hot out over the past few weeks and I've come to the conclusion that my hot start problem is definitely _not_ cured.

I've tried disconnecting the FP solenoid --> seems to be even worse.
I've tried running the fuel pump using the check connector to get a rid of any possible source of vapor look and the prime the fuel lines before starting the car --> car starts right away but then it wants to run extremely lean for the first few minutes. If I try and rev it up I can't get it above 2600 rpm.

I'm curious if the "lean" condition is caused by missing (ie. spark plug not firing), which is spilling O2 into the exhaust causing it to look lean?

08-01-2007, 07:59 PM	#13 (permalink)
DoctorDex Forum Member Join Date: Jul 2005 Location: Edmonton, AB Drives: '91 VR4 - RIP Trader Rating: (16)	Re: Hard start when hot Back from the dead. It has been very hot out over the past few weeks and I've come to the conclusion that my hot start problem is definitely _not_ cured. I've tried disconnecting the FP solenoid --> seems to be even worse. I've tried running the fuel pump using the check connector to get a rid of any possible source of vapor look and the prime the fuel lines before starting the car --> car starts right away but then it wants to run extremely lean for the first few minutes. If I try and rev it up I can't get it above 2600 rpm. I'm curious if the "lean" condition is caused by missing (ie. spark plug not firing), which is spilling O2 into the exhaust causing it to look lean? __________________ '91 VR4 - Rebuild in progress: Mods TBA.