Problems With MAF, Computer, Injectors, etc!!??? help!!

**delldoe** · 05-14-2007, 02:05 AM

Well we put a SQ-V2 on my 92 gt everything worked good car ran fine but the check engine light would come on around 4500rpm and also when i was down reving. We had stock injectors in it with a stock meter (all stock except S-trim), so upgraded to a used 75mm pro m meter and 24lb accel injectors. Now the car runs great no check engine light above 4500rpm or when im down reving however when i go to pull out from a stop sign or red light just plain normal driving the car wants to spit and sputter around almost stalling (it also occurs in 5th gear when im lightly on the throttle cruising down the road). I put the stock meter back on and the problem goes away but the check engine light still comes on same as before.

fuel pressure is around 38-40psi i tried to lower it a little that did'nt help then i raised it a little and that did'nt help either.

anyone know what my problem could be or what i might want to try next?? new meter, computer, injectors???

we also unhooked the TPS and the problem continued

thanks for your time.

**blkp42e** · 05-14-2007, 08:47 AM

id look into more fuel. what fuel pump are you using? stock? if so id go bigger. to a 255lph.

also, id say an Strim on 24# injectors may be pushing it a little.

id get 42's to give you alot of room to grow with a 255lph pump and get a tune. mine used to do the bucking but after a tune, it runs really good now

**delldoe** · 05-14-2007, 10:51 AM

i have the stock in tank pump and the inline that came with the vortech kit..... we tried 30#'s first and it soaked the plugs other people have been tellin they ran 30#'s in theres and it worked great my poor car just doesnt want anything but 19#'s i guess