

| Subject: | Re: Cold Engine Problem |
| From: | MOST,DAVID |
| Date: | Wed, 3 Jan 2001 00:02:12 -0800 |
> > You said the engine essentially has a delay in throttle response when > cold; and the last cold engine experience was not a delay but rather a > stalled engine. > The first part is correct...a delay followed by a bit of sputtering. The last experience was no response at all from the pedal, BUT it continued to idle. I'm not sure if it would have stalled, but as I started to roll backwards, I applied the brakes and after a couple of seconds, I turned the engine off. Then, it wouldn't start again. I hope this slight correction is helpful. > I would check the fuel pressure 29 psi at Idle 36 Psi at low vacuum. On > a cold engine the computer assumes the fuel pressure is set and gets no > feedback if the mixture is too lean or to rich. If the fuel pressure is > low then the engine runs lean and would stay that way until the engine > warmed up, and then the O2 sensor would cause the injector pulse to be > lengthen until the mixture was correct. > Thanks for the thoughts Mark. I'll let you know what I discover. David
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