Have the dreaded P0121 code.
#11
This code does not mean what the title says. It means that the ECM is sensing more air flow than it is asking for.
I.E: an air leak between the MAP and the MAF OR a sticky butterfly; that sort if thing.
I.E: an air leak between the MAP and the MAF OR a sticky butterfly; that sort if thing.
#12
Checked and cleaned my throttle body today, it was a little dirty. Checked and tightened one bolt on the throttle body, Hose going to the rubbed intake coupler had a loose clamp. Reset codes but the idle seems a little high. At idle 1000 RPM, 50 mph 2000 RPM. Driving through town I don't have to press the gas petal to go 25 mph at 1500 RPM. Is this normal? Don't seem the same as before. Thanks Jim
#13
Idle is about 700 RPM. Sounds like you didn't disconnect the wires before you cleaned it or the gears in the butterfly got gummed up/stripped.
The loose intake pipe might have caused the code. That is an air leak between the MAF and the O2 sensor.
The loose intake pipe might have caused the code. That is an air leak between the MAF and the O2 sensor.
#15
I did move the throttle plate manually to clean in and around it. The one bolt that was loose was the upper-right bolt that holds down the throttle body.
#16
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07-05-2024 07:59 AM