i have a 305 TPI sitting in an 85' IROC, i swapped the prom for a JET stage 2 chip, and a 160 deg. thermostat, that was about a month ago, and lately i have noticed that when i drive my car after it has been sitting for a few hours, that it bogs whenever i touch the gas. could this be being caused because i unhooked the smog pump? could the chip and thermostat be causeing it? the car has about 150,000 and i was thinkin maybe i need new injectors? Ive only had the car about two months, i was reading that i should have done a tune up right after i got it, what things need to be changed? i flushed and chnged the rad fluid, changed the trani filter and fluid, the oil filter and fluid, and a new starter, what else should i change?

http://www.geocities.com/cibalibeb

thanks
Caleb

 

I'd go back to a 180 stat , change O2 sensor, plugs, cap& rotor, adjust TPS and IAC , time it, fuel filter, air filter, diff fluid , clean out TB with carb cleaner, send injectors to get cleaned.

 

how do i set my TPS? what is the IAC? where is a good place to send the injectors too? the ones ive seen run $100-$125 for cleaning i can get a new set of injectors for $229 which is better? thanks i will change the thermo, the fluids and get back to u!

Caleb

 

Just a thought.
Check and make sure the cold start injector is still plugged into the harness.