View Full Version : Car Gets 10 Mpg help please!


juniorbacon
Sep 18th, 08, 08:42 PM
hi i have an 88 iroc 305 v8 tbi and my friend has the same car but gets 20 mpg almost. i get 10:mad: heres all the new stuff ive put in. ect sensor, oxygen sensor, new plug wires , cap and rotor, rad, water pump, pretty sure tps is good seems to pass the resistance test but i can test it again i guess and the iac is fine. and i ran the fault codes and keep getting code 45 rich exhaust code. i know i have rich exhaust cause my car spits out so much gas its un beleivable. the injectors arent messed cause its still in a nice cone:yes: lol could it be the tps? the timing is fine, it seems to me the car isnt getting enough air. cause when the pcv vacuum line is disconnected it seems it has the right fuel to air mixture for how much gas its spitting out. the air filter is new and the pcv is fine. so i hope this enough info for somebody to help me. could the tps cause this crazy cone of gas? any input is good input thanks guys. btw im new to this site so HEYYYY! and thanks a bunch

blue ss
Sep 19th, 08, 06:25 AM
Most people on this site are familiar with 1st gen camaro, may not get a big responce , but mabe it would be worth looking at the coolant temp sensor just thinking it could be always telling your copmuter its cold and to run rich. There are two one for the coputer and one for the dash. Or mabe the mass air flow sensor not seeing air flow well, Or throttle position sensor. On those cars it may be worth having the dealer find it and do the work yourself, Unless you can look at all components at the same time to be sure they are doing what they should its hard to find.