I have a 97 Mirage 1.5L Auto. The problem with it is that whenever I'm accelerating and release the gas pedal for a few seconds and then accelerate again, the tranny tries to change gears suddenly and abruptly a couple of times. By that I mean that it changes back and forth in a couple of seconds and this usually from 2nd to 3rd gear.
This situation started when I changed the Idle Air Controller. My car had a 3000gt throttle and IAC, it has been installed for 8 months already. I decided to put the original IAC back and that's when the problem stated above began, it was worse than described. I then dicided to put the car in it's original state so I installed the original throttle with its IAC. The problem remained, so I swap the IAC again for the 3000gt IAC, the car runs much better and the problem above is minimal but it still happens.
Could this mean that both IAC are damaged? Why it started to happen as soon I swapped them?
I also want to add that I have the following codes:
P0120 - Throttle/Pedal position sensor
Sensor A CKT Malfunction
P0170 - Fuel Trim
Malfunction Bank 1
Can someone explain to me what is the fuel trim and where is it located?
have the same problem?
Thursday, December 29th, 2011 AT 2:45 PM