20 Most Recent 1994 Toyota Xtracab Questions & Answers

The code 25 is an O2 sesnor code lean condition, the problem is usually not the sensor but another problem, it can be caused by an engine misfire, if that's the case the cause for the misfire has to be corrected first.

the missing is the cause of no power .she must fire on all cylinders,1 or 2 out and she will run as you state.

the flashing OD light means that a fault has occurred in the transmission and a fault code has been stored in the TCM (transmission control module, u will need to get the TCM tested with a scanner to see what code is there.

i would speculate that you are introducing quite a bit more air/oxygen into your combustion chamber resulting in your lean condition. Keep in mind most performance chips advance timing and further lean the air fuel ratio for increased power. I would suggest an air/fuel converter such as greddy safc or similar to increase the amount of fuel your engine is getting.

try ajusting your carb

if there is a miss when accelerating i would lean more to the injectors. but if you get the number to your toyota region office ask for an fts, or field tech, tell them what all is happening and that the dealer keeps jerking you around they will probably arrange for someone to look at it for at no charge. i work for a toyota dealer and they are really big on service like that.

check your ground ******** your motor to the frame

code 25 air fuel ratio lean condition indicated.POSSIBLE CAUSES- AIR LEAKS IN THE INTAKE MANIFOLD -EXHAUST MANIFOLD -EXHAUST PIPES- FUEL CONTROL SENSORS IS OUT OF CALIBRATION LIKE THE-ECT IAT MAF -LOW FUEL PRESSURE LIKE- FUEL FILTER CLOGGED PRESSURE REGULATOR FAILURE- ONE OR MORE FUEL INJECTORS RESTRICTED -HO2S ELEMENT IS CONTAMINATED DETERIORATED OR HAS FAILED -VACUUM HOSE IS DISCONNECTED BROKEN LEAKING OR LOOSE.

hello, it sounds like the alternator is the problem, most auto parts stores can check the alternator/charging system at no charge without removing it from the truck, I'm sure you will find that the alternator needs to be replaced.

is it petrol? if yes change ht leads and coil pack. misfire should clear.

replace the globe as it may be burnt out.

GLOW PLUGS OR GLOW PLUG CONTROLLER