b18c1 drivability issue
 

Recently my car started to randomly sputter. I would pull up to a stop light and it would try to die, I have to keep my foot into the throttle a little bit to keep it running. It doesn't do it all the time, it has been more frequent recently and now i just don't want to drive it. When it does die, it is hard to start again. Any suggestion.

Re: b18c1 drivability issue
 

Need to post way more info.

Whats the setup? Is it tuned?

Re: b18c1 drivability issue
 

is the car tuned? it can be either running too lean or rich at idle. Your IAC could be clogged. Your map sensor could be taking a S%&T. etc...

Re: b18c1 drivability issue
 

With it being intermittent I'm thinking electrical

Re: b18c1 drivability issue
 

^ yup, thats why i think its possible the MAP is going bad.

Re: b18c1 drivability issue
 

My bad for the mystery post, the car is tuned, and was running great, 10 lbs of boost forged internals, solid engine. I have just been a bit stumped on the current issue. It doesn't really do it when it is cold, but after warm up it does.

Re: b18c1 drivability issue
 

by any chance have you done a valve lash adjustment recently?

Re: b18c1 drivability issue
 

not in a few years, lets say 15,000 miles (exaggerated).

Re: b18c1 drivability issue
 

Would a compression test give me an idea of the valve train?

Re: b18c1 drivability issue
 

i had the OPs same problem and it was an issue with the MAP sensor. difference was when mine cut off, i could start it right back again. it would just idle way too low at stops intermittently and cut off unless u were giving it a bit of gas.

you might want to check the MAP sensor out...

Re: b18c1 drivability issue
 

I will check it out. thanks.

Re: b18c1 drivability issue
 

i would look into the distributor also. sounds like a spark problem maybe.

Re: b18c1 drivability issue
 

I am leaning towards the ignition issue, when it starts missing the tach goes a little crazy.