3sgte help, running rich, map sensor error Options

[markie]

Having a local shop take a look at the motor. They told me the motor is:

1) running rich, they dont know why
2) ecu is spitting out a Map Sensor error

They are suggesting I just get the wiring redone, where it is just a simple plug and play. Or I find someone with a working map sensor, and see if its just my map sensor that needs to be replaced.

First of all, wiring is a complete mess. Whoever did the wiring did not solder or even use butt connectors, just electrical taped 2 wires together.

If it's just the map sensor that needs to be replaced, that would be the cheapest option but I would probably run into more problems in the future just because the wiring is horrible.

Question is: What should I do?

(killing myself is not an option)

[95st-celica]

is it a 2nd gen or 3rd gen...i know with the 2nd gen they come pig rich from the factory due to the top mount. I put an SAFC and a wideband on and it helped a lot with the way the car runs and drives at different rpm's....but the way your harness sounds, it just as well could be that. take ^ advice and go through that harness really well, and if its that bad take it to someone that knows what there doing. i learned that simple stupid problems like a weird altenator or loose battery terminals will cause problems with these motors. props (lagos) lol..They are very tempermental, but easy to maintain if you know what you are doing...rule out any possiabilities before you jump to the conclusion that it could be this or that and end up spending way more money then you would of had to.

mr20c is a great site that will have anything that your looking for, for the 3s. try a map sensor and see if it works, worst case is you have to re-sell it.

This post has been edited by 95st-celica: Jun 12, 2010 - 3:15 AM