i have a 96 gsr with an ls in it that i just put in. The car is starts and idles but if you try to give it gas it stumbles and bogs and wont get up to speed. What are some sugestions. The person i bought the car from hooked up an obd1 harness to the obd2 cabin harness...will that even work or what else could it be.

 

do you have a check engine light active?

 

only for iacv