limp mode questions

in between 2 and 3k my car goes into lint mode when im driving. im gettin very bad gas mileage and its running really rich. i checked the codes and it said map sensor. i changed the map sensor and ecu and it still says the same thing…any ideas?

Err… you mean “Limp” mode?

yea. any ideas?

Most likely a vacuum leak in the hose leading to the map sensor.

i had the same prob, mine was the ecu tho. i unplugged it took it in then took it apart clean board and all put it back together then it ran just fine haven’t had the problem again. idk if helps but its my 2 cents lol

i fixed all of the lines tried 3 different map sensors and still goes into limp mode… ive changed the spark plugs and its still the same

got any harness work done, might be a in the signal wire from MAP to ecu. trace em if you can and make your its working

i bought the car as a shell and it used to be boosted so could any of the wiring be messed with going to the ecu?

bump

I would definatly check continuity on the 3 leads between MAP sensor and the ECU/ECM.

You may also want to check the ECT sensor, if it is not working properly engine will run very rich. 94