91 Toyota pickup. CEL is on. Gas pedal spongy, low acceleration escepially when trying to get on the freeway, loses power on hills. Obd1 codes 41 & 43

Asked by Jan 29, 2017 at 09:20 PM about the 1991 Toyota Pickup 2 Dr Deluxe Extended Cab SB

Question type: Maintenance & Repair

CEL is on in my 91 toyota pick
up. Obd1 Codes 41 & 43.
Recently replaced head gasket,
timing chain & cover, spark
plugs, alternator... Took to
shop yesterday they were
supposed to have replaced the
TBS. CEL is still on, runs rough,
very little acceleration, loses
power. Please help...What
could be the problem? Anyone
have an answer for me? Thank

2 Answers


would sense a plugged exhaust or EGR valve not functioning one might check the air control or thermo-time switch~


Do you mean TPS- (Throttle Position Sensor)? Anyway...take back to the shop. They are responsible for their diagnosis.

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