Hi, i Read the codes on my 1988 iroc-z 305 TPI, it runs kind of rough when you start it up but once it warms up it starts to run really rough and stalls, i just recently bought a new battery. i noticed the oil pressure gauge is giving an inaccurate reading, the codes that came up were codes:

15 (Coolant sesnor)
33 (MAF sensor) Excessive Airflow Indicated
34 (MAF sensor) Low Airflow indicated
54 Fuel Pump Circuit

any ideas? Thanks !

 

https://www.thirdgen.org/forums/tech...formation.html

Test and repair

http://www.chevythunder.com/cts_diagnostic_pg2.htm

http://www.chevythunder.com/maf_code_33.htm

http://www.chevythunder.com/maf_code_34.htm

http://www.chevythunder.com/fuel_pump_code_54.htm

 

Thanks!