2001 Mitsubishi Galant transmission

KRIYI1

MEMBER
2001 MITSUBISHI GALANT
121,200 MILES

The cart according to a mechanic is stuck on the third shift, comes to about 60-70 miles without recognizing any change of the transmission, then at that rate begins to ask the next shift. Constantly loses power and shuts down. I went to a scanner at autozone and shows 13 different codes and then told me that 6 of them were repeated. And the 7 who were are:
P0135 heated oxygen sensor
P0130 heated oxygen sensor 1 cicuit fault H02sensor
P0134 1-4 heated oxygen cylinder (front) sensor detective not
P0507 idle control system RPM higher than expected
P0720 output speed sensor circuit malfunction
P0715 input / turbine speed sensor circuit
P0705transmission range sensor circuit
What is the correct sensor or are they all?

1 Reply

KHLOW2008

MECHANIC
41,815 POSTS

The first 4 codes are engine related and would only affect engine performance.

The other 3 codes (P0705, P0715 and P0720) are related to transmission going into limp mode and locking inot 3rd gear. It can be sensors, wiring or TCM fault so you would have to perform the proper diagnostics to find the cause. All codes could be related to one particular fault and it might not be sensors, more likely to be solenoids or wiring.