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Old 08-21-2008, 12:24 PM   #1
Scooby Specialist
Member#: 42548
Join Date: Aug 2003
Chapter/Region: NWIC
Location: Portland, OR
1999 GF8 V7 STi Swap
Aspen White

Default Help me diagnose my problemeo please!

So I have the most random issue going on with my motor. It's a ej20g top end with an 04/05 STi shortblock, 550cc inj, and power fc.

The car is stalling after driving around a bit after warm up. So starts up great and idles great. Drive around but during that first 10 min when I go into neutral coming up to a stop light the car will just die when I take it out of gear. Only happens during first 10-15 min of driving. Smells like lots of fuel after starting right back up.

Car pulls amazing and drives totally normal after first 10-15 min and doesn't do the stalling if I were to go park somewhere run errands and then start it back up. Basically only in the morning or after not driving for a long time. Could it just be my ecu map?

I have noticed that totally randomly sometimes the idle sitting will hunt from normal (850) down to around 3-400 up and down, up and down and eventually go back to sitting at 850.

Any ideas would be great. Sorry for the long post.

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