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TPS switch bad? ..and Knock Position Sensor problem? 200 1990



Any OBD codes from sockets #2 or #6? The car got an inkling of the problem when the CEL light came on.

LH 2.4 can get a little "emotional". Try disconnecting the battery for a minute or so to clear the adaptive memory, then reconnect.

Throttle body switches are easy to test with a multimeter: three pins, with one common between the two. One circuit should be closed with the T-body closed, the other when the T-body is wide open. This probably isn't your problem, I bet.

How's your crankshaft position sensor? Has it been replaced yet?

You mentioned repairing cracked hoses, how is the main intake hose? Did you remove it completely and check for cracks and leaks? Are all of the vacuum hoses present and accounted for?

Do you have a spare AMM to try?

Any chance you accidentally swapped the connectors for the IAC valve and the throttle body?

-Ryan

--

Athens, Ohio
1987 245 DL 314k, Dog-mobile
1990 245 DL 134k M47, E-codes, GT Sway Bars, GT Braces
1991 745 GL 300k, Regina, 23/21mm Turbo Sway Bars






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New TPS switch bad? ..and Knock Position Sensor problem? [200][1990]
posted by  CTON  on Wed Oct 8 04:44 CST 2008 >


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