[RESOLVED] gst problem

[boostingsx98]

i currently have a bonestock 96 gst. When i start the car everythings runs fine with good idle, but when the car warms up after a few minutes or a few minutes of driving the rpms drop down very low and the car stalls out. The things i checked for was a boost leak, sparkplugs, plugs and i tryed to adjust the BISS screw but nothing has helped. any ideas??????

 

[Detective Coating]

Your not venting your BOV are you? Have you tried new plug wires? What are your plugs gapped to? Should be .028

 

[habitatguy187]

Since you said it does it after the car warms up it makes me think o2 sensor. Is your CEL on?

 

[boostingsx98]

im not venting and i replaced the plugs and sparkplugs. Would an O2 sensor really make it stall out?

 

[gstjeff11]

Sounds like a similair problem my friends 97 GST had. I replaced everything and it ended up being a combination of a boost leak from the crappy stock BOV and the MAF going out.

 

[boostingsx98]

ok ill try to replace the maf and keep you guys updated.

 

[Squirrel8811]

Check your coolant temp sensor. It may be stuck on the reading when its cold so it runs fine cold but not warm.

 

[2slow4now]

you may want to check the EGR isn't stuck open it helps your engine warm up when cold and should close at highway speed. I had a s10 that did that and it took forever to figure it out.

 

[tjbiker031]

does the idle surge at all or just when you idle it just bogs down and dies on you.

but i agree with gstjeff. it sounds like a boost leak somewhere.

 

[97gstjosh]

Bets on I.A.C. Valve
my car had the exact same problem and that was the culprit

 

[boostingsx98]

well the problem was the sparkglugs, they were not gaped correctly. thanks for the help guys!