97 SOHC mtx
i did a swap awhile back from atx to mtx never really paid attention to the CEL, but i did a diagonistic on it and what i got is....

37/P0743: TCC solenoid circuit

37/P1899: Park/Neutral switch SW Perf

31/P0443: Evap Purge Solenoid Circuit

42/----: Fuel Level Voltage Low

Oh yeah i still have the ATX ECU still in, i really can't find a MTX ECU at a local junkyard

Any ideas on how to get rid of the 37 code(s)?...the 31 code i know i have to replace the sensor and the 42 might be a relay or an open circuit somwhere...

If u have any other solutions it would be much appreciated!!!

 

#37 will only go away if you put in a mtx computer......as long as the auto one is in there, the codes will be there....

 

i betcha if you were to find outwhat theresistances is you could put a resistor to get it from throwing the codes

 

thanks spud n any ideas on #31 and #42???

 

For the 31 you need to find a an evap canister with a Leak Detection Pump. It's common after doing an ATX to MTX tranny swap[/b] with an MTX PCM. The new PCM is looking for a signal from the LDP. There is already an electrical connector by the evap canister and you will also need the extra vacuum line which connects to the blocked off vacuum line by the evap solenoid. The evap canister is behind the front bumper cover and under the splash shield on the passenger side.

 

aight 3 down 1 to go...lol... and #42 code be wat? a relay goin bad or an open ciruit right?

 

42 Fuel pump relay control ckt, Auto shutdown relay control ckt, No ASD relay output voltage at PCM, Fuel level sending unit volts out of range, Fuel level unit No change over miles.

Check your relays.