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Car Forum / Driving, Maintenance, Tuning / Maintenance and Repair / January 200799 Subaru Forester L problems
I have a 99 subaru forester that I just recently changed the head gaskets on. in doing so a host of trouble codes sprang up when the car was all back together. It ran fine but the codes all popped up. They primarily deal with two items .. first the is a Fuel Air control meter?. I got the impression that it was the Idle Air control valve.. and second was the speed sensor . the two codes I remember are these p1121 p1050 (out of five.. two of the codes listed were redundant so there are really only 3 codes) .. I will take it to Autozone tonight to see if I can get a new list. Anyway so last night I tried to fix what I thought might be the problem .. the car ran fine but it had the codes as previously mentioned. I thought that maybe the throttlebody just needed to be cleaned. so I used some carb cleaner (that is some powerful medicine) and cleaned out the throttle body and the Idle air control valve stuff (this was really dirty had lots of black stuff). but now when the car is started and warmed .. if you place the acceleration at about 2-2.5 grand on the tach, the motor will surge. So did I mess up the IAC? and also after doing this the 'at oil temp' light started flashing. according to the manual it has soomthing to do with the transmission sensors in an automatic tranny. the transmission fluid isn't over heated. the light comes on when it is cold too. I hope somebody can help me on this. Thanks for your time, Byron byron.o.lawrence@gmail.com wrote in news:1168963511.889173.195990 @m58g2000cwm.googlegroups.com: > I have a 99 subaru forester that I just recently changed the head > gaskets on. in doing so a host of trouble codes sprang up when the car [quoted text clipped - 22 lines] > > Byron P1121 = TP not consistant with MAF input. P1050 = not in my list at 2,000 rpms IAC system should be out of the mix as far as surge cause. my first move would be to backtrack everything i touched and check for connection and possibly clean the MAF sensor matrix, if needed. >byron.o.lawrence@gmail.com wrote in news:1168963511.889173.195990 >@m58g2000cwm.googlegroups.com: [quoted text clipped - 21 lines] >> automatic tranny. the transmission fluid isn't over heated. the light >> comes on when it is cold too. Wires mixed up or possibly harness damaged. >> I hope somebody can help me on this. Thanks for your time, >> >> Byron > >P1121 = TP not consistant with MAF input. >P1050 = not in my list Not do I find it in AllData. >at 2,000 rpms IAC system should be out of the mix as far as surge cause. Absolutely. >my first move would be to backtrack everything i touched and check for >connection This mess the OP described is not caused by a lack of cleaning the throttle body or likely the lack of cleaning anything else. Agree he needs to check ALL electrical connections. Don www.donsautomotive.com > and possibly clean the MAF sensor matrix, if needed. thank you for the provided feedback to date. i have a list of the codes now p0500 p1101 p1101 p1121 p1540 p1540 as previously mentioned some of these codes pop up twice. and more problems have occured since getting these readings. the surging only occured after getting these readings and cleaning the throttle body. also the AT Temp light (automatic transmssion temperature light is flashing) after having unbolted a sensor near the back of the transmission pulling it out looking at it (it has two wires going to it and a metal cylinder inside the transmission about an 1-1/4 ish long).. and then putting it back. for p1101 and p1121. could this be a result of the MAF sensor or wires going to the sensor being shorted? for p0500 where should I look to find the speed sensor? I have heard that it is on the transmission on some cars. how can I identify it? and p1540.. it has to do with a pedal position sensor? or a VSS signal too high? which both of the codes mention bmw and vw afterwards.. this is a subaru. again thanks for your time,, i will keep looking messed up wires! I have yet another addition. I found an unconnected vacuume hose.. I connected it and the AT Temp light disappeared .. I am hoping this solves the MAF sensor problem and the throttle position not matching the MAF out put problem too. BUT it still surges.. this may be a by product of improperly cleaning the IAC? I hope not, as I was quoted 400 for a new one. I will take it to Autozone tommorrow again and get the codes read.. OR maybe buy a reader for 80 bucks! >I have yet another addition. I found an unconnected vacuume hose.. I >connected it and the AT Temp light disappeared .. I am hoping this >solves the MAF sensor problem and the throttle position not matching >the MAF out put problem too. BUT it still surges.. this may be a by >product of improperly cleaning the IAC? Unlikely. Don www.donsautomotive.com > I hope not, as I was quoted 400 >for a new one. I will take it to Autozone tommorrow again and get the >codes read.. OR maybe buy a reader for 80 bucks! |
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