SUV rough idles and stalls: tps sensor?

Asked by Aug 24, 2015 at 11:50 AM about the 2002 Isuzu Rodeo

Question type: Maintenance & Repair

I have a 2002 Isuzu Rodeo, rebuilt engine,
v4. I cleaned the throttle body but need to
definitely run seafoam through it as there is
a ton of carb build up. I replaced the fuel
filter and it stoped stalling out but still can't
drive it above 5 mph (high revs but
speedometer won't increase beyond a
certain point). It was running great while
idling before I messed with the tps sensor (I
unplugged it and plugged it back in while
idling). Now it rough idles reeeeally bad and
will stall unless I give it lots of throttle. After
I give it throttle it will idle without stalling. I
have no code checker. I know my pcv valve
is probably clogged because of all the carb
buildup. Help?! This momma needs to get
back to school!

3 Answers


3 out of 3 people think this is helpful.

I've already cleaned the IAC valve and checked all the plug wires. Can't find any vacuum leaks either.

I would disconnect the negative cable from the battery and have the ECM "relearn" the TPS sensor it worked on mine

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