I have an 89,240DL,auto,145k, with LH-2.4 . I've been getting fault codes 231,113,221. I removed and cleaned the TB (dirty), cleaned and oiled the ACV, cleaned and greased electrical connectors,tested the resistance in the AMM wire and the OXS and replaced the FPR . Ran well-no codes for a few weeks until today. I beleive the car goes into limp mode(more like criple mode) and will stall if I don't keep the RPM's up. I changed the FRP after lurking here and thought I had it solved. I haven't got to the ECU system electrical tests in the Bentley Book. Are they conclusive? Could the AMM be bad if it passes a resistance test? Thank you for your help. -Jack
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