MY ON BOARD DIAGNOSTICS TELLS ME CODE P033 ...

1994 Cadillac SLS

Tiny

Anonymous

December, 4, 2012 AT 11:42 PM

My on board diagnostics tells me code p033 current any idea what this code could mean?

FOUND 14650 RELATED QUESTIONS

Wiring Issue?

68 ANSWERS
134 IMAGES

1 Answer

Tiny

caradiodoc

December, 5, 2012 AT 12:43 AM

33 - map sensor signal out of range, high

Measure the three voltages on the map sensor. One must have 5.0 volts. The ground wire will have close to 0.2 volts. The third one relates to this code. It should have roughly between 0.5 and 4.5 volts depending on intake manifold vacuum. The only way for it to go to 5.0 volts and set this code is if the ground wire is open, (it will measure 5.0 volts), the sensor is defective, (the ground will have the proper 0.2 volts but the signal wire will have 5.0 volts), or the signal wire is open, (all three voltages will be correct at the sensor).

Please login or register to post a reply.

Brake Pads and Rotor Replacement Ford
Oil Change and Oil Filter Replacement VW
Oil Change & Filter Replacement Toyota
Oil Change and Filter Replacement Toyota
Front Pad-Rotor Replacement Subaru Legacy