this is driving me nuts

[bodhi_boyd]

alrighty fellas, been working on my 97 gst for a while now. it keeps throwing a check engine giving me 2 codes

a random misfire and one for the barometric pressure sensor. this misfire has been haunting me and is driving me insane. i just replaced the maf sensor with a brand new one so i dunno if that's the problem but im still getting a code.

replace spark plugs like socks because of misfires. using ngk bpr7es spark plugs and new coils and wires.

really just want this to be over with...

any thoughts?

 

[jakk220]

Have you done a boost leak test?

 

[pauleyman]

Dont just ra domly replace parts. Trace and test the circuit.

 

[bodhi_boyd]

did a boost leak test, boost leak is pretty bad from previous owner. even has atmospheric dump instead of recirc.
i have been testing stuff as i go. everything i replaced needed replacing

 

[lasershark]

i have been testing stuff as i go

Since you don't have a profile, I find it pertinent to ask if you have a 6 bolt swap or if you are still on the 7 bolt. Only ask due to the random misfire...

 

[bodhi_boyd]

i believe it is a 7 bolt, i never did a swap and im pretty sure its one of the same motors that came in the 97 gst's

 

[AlexGsxCummins]

You cant vent a bov with stock maf, rec it and that will fix some problems and go from there. If it is stumbles and feels like its going to die when you come to a stop that's most likely your issue

 

[pauleyman]

did a boost leak test, boost leak is pretty bad from previous owner. even has atmospheric dump instead of recirc.
i have been testing stuff as i go. everything i replaced needed replacing

Yeah thats a problem. Recirculate. Wouldve been nice to know this first.

 

[bodhi_boyd]

know any decent ways to do it for a relatively low price or any recommendations?

 

[Dsmkauai]

Home Depot spa hose or get some radiator hose and make it work. I did this on my gvr4 found some radiator hose and got a plastic adapter piece from ace hardware. Since it was a weird angle and I couldn't find a exact hose to fit. I used the adapter in between the hose and it works perfect. Has been working for 3-4 years with no issues, never blown off or leaked or anything. Probably cost like $5-6 to make.

 

[boostdawd]

I have a 97 gsx with 6 bolt swap, mine isn't recirculating and runs great and never had an issue with it. Why is that?

Every car is different.

 

[PrimerPLus]

I can't see right now your profile petegsx, but if you are running speed density then you will not have issues running an atmosphere dump.