i swapped in a b20vtec and when i try to start my car up, it revs up to 3K and drops back down and dies out.
i swapped out the spark plugs for new ones. what else should i be checking and what can cause the car not to stay on?

 

most important check all your wire harnesses from your engine to your ECU. Also make sure that ecu is the proper one for your motor and it is the correct OBD version.

All I can think of.

 

help him out!

 

check all ur vacuum hoses and the intake manifold for leaks

 

im going to check them now....crosses fingers

 

no leaks. car still starts up. goes to 3k and cuts off....anyone???????

 

check your iac still if it is still good and also adjust your iddle screw

 

alrighty, i will check that first thing in the morning

 

Check for spark and fuel.

 

i just picked up a 91 teg from a homie for free. it was parked at his house for a yr and wuld start up and die out.. so i did a lil tune up and noticed his spark plug wires were not in the right order on the distiburator... fixed it and it started right up perfectly.. did u try to check that?

 

it's either tuning or a wicked vacuum leak.

 

that sucks

 

fixed

 

Good deal