Sr20det blacktop running like dookie!

[marshal_s14]

So I've had my sr20det for awhile now and it just now started to run like crap.
It's pretty much stock except a z32 maf. It runs really good for like 5-10 min pulls hard then turns Into a slow turd. I already replaced the coolant temp sensor, and no boost Leaks, injector o rings are good, idk what else to try. Completely stock at with a ssqv an z32 maf. Fuel filter is z32 and Walboro 255

[marshal_s14]

Knock sensor?????

[KrazyS13]

Is the car tuned for the for the Z32 maf?

[marshal_s14]

Nope it's a stockl ecu

[ultimateirving]

thats ur problem. cant use z32 maf on stock ecu, if it was ever running right with it seems unlikely, get a stock sr/sohc maf and switch it back!

[marshal_s14]

But it runs good for like 10 mins and idles fine and doesn't stall