Need some help with this one. It has me completely stumped.
Car is a 2005 Aveo with a 1.6 litre EcoTech II manual tranny.
Customers complaint is the car stalls and smells of gas. This complaint has been verified. Recent oil change is all I've been able to dig up.
What I found was the vehicle will cold start normally, idle and drive for the first 5 minutes until it reaches op temp. Then it will surge to about 2k, rpms will drop off and vehicle dies. It will start again a little rough but idle perfectly for less than a minute and repeat the problem. It will continue to do this for unlimited starts. The vehicle will always start and idle and drive fine for the first minute but always surges then dies.
There are no codes stored or pending.
Checked the 5v ref on the MAP, good. Removed and cleaned the throttle body also found a puddle of fuel laying in the bottom of the intake manifold. Checked fuel pressure is a steady 57-59 even thru the surging and engine dieing. Checked the EGR valve its operational.
Things I want to still check are vacuum, and live data for anything out of the ordinary.
Checked TSB and Identafix but no anvil.
Any input would be greatly appreciated as I have never worked on one of these.