My aveo wont start after i put a new M.A.P sensor on it. it was runnung then started to chug then died and wont start. the oxygen sensor melted the wires at the sensor. both sensors are new. it was leaving black stuff on the drive way when i would give the car gas.
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Re: 2004 aveo wont start
Sounds like it was burning real rich if it melted the o3 sensor harness chances are the converter melted inside and is restrickting the exhaust if you unhook the exhaust at manifold and it runs replace converter and fid out what is making it run rich before you burn out new converter
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code p 0720 refers to output shaft speed sensor (OSS)---circuit malfunction===causes ---wiring --- OSS sensor--- ECM---TCM
as the OSS reports shaft speeds to the TCM so that he correct ratio can be selected, I would be having it tested / replaced
code p2110 refers to throttle actuator control (TAC) system-forced limited rpm mode (limp mode)===causes wiring--tac motor- APP sensor--ECM
it also refers to heated oxygen sensor(HO2S) 1 bank 1 implausible signal===causes wiring .--short to positive-- short to ground--HO2S sensor---ECM
Check/replace the HO2S sensor and check the APP sensor and TAC motor.
check the fuel pump and related electrical system and fuses. The aveo doesn't have a fuel filter but only a screen at the bottom of the pump. I had to replace the fuel pump in my 2004 aveo at 80k due to a clogged screen. Hope this helps
There are several ways about this. Could be fuel filter, water in fuel, ignition part starting to fail(plug, wire, cap, rotor, coil) or possibly even oxygen sensor. The oxygen sensor will clear up if you accelerate heavily then when under normal load it will start chugging again. These are a couple of areas to check without getting into serious diagnostics.
check tps sensor (throttle position sensor in backside of the throttle cable) and map sensor (manifold absolute pressure on front little 1 inch sensor with vacuum line) make sure there plugged in. the ecm (engine control module driver side inner fender) and tcm (transmission control module under dash) both need the data to know when to upshift and increase fuel/air. Otherwise the computer runs default values and guesses off of other sensors giving poor performance. also disconnect battery for 15 min. usually resets aveo service lights if you dont have a scanner.