Hopefully this is something simple.

I have a 99 turbo Si, recently changed to OBD1 and 3bar map sensor. When I start the car in the morning, it idle's like ****, and if I give it gas it'll rev then die, also tip in thottle the car sputters. It'll keep acting like this until my engine warms up, then it idles and drives perfect.

I've checked the map sensor wiring like 20 times and completely redid the wires twice. If it's not the map sensor, what else could it be?

Thanks.

 

What engine management are u using?

 

Neptune

 

In case anyone does a search on the same thing.

I bleed the air out of my coolant system and it fixed the problem.