I Put on a new IAC from autozone few wks ago and was having a hung idle since put it on. Last nite got a CEL that stayed on for awhile last nite. Stopped at a gas station for bout 20 mins waiting on my boy to come home and when I left to go to his house, the engine light was gone. Got there and did a koeo and koer test. Only during the koeo test did I get a code 122 for TPS being too low. Drove home and no more engine light last nite. Today I read up on idle set procedures though I've done them before. Basically I backed off on the stop screw and got it set within the .10 and with IAC unplugged, I just went ahead and put 2 turns on the IAB screw since 2 is the max that you should go with that screw. When my son started the car up, it wanted t die so I turned the stop screw clockwise in small increments then revved up to see at what point it would stay running.
I then backed off a little bit and got it set to where it would run without cutting off, at it's lowest idle. Thing is, the lowest it would idle without cutting off was about 900. I cut the car off and checked the TPS and it was .99 It had the 5 volt ref too. I drove her around for about 10-15 miles and it felt ok but still doesn't feel quite as it has when it has run its best and I'm talking throttle response. I stopped at one of my friends for about 5 mins and cut car off. When I started back up, the temp was at 210 and as I drove out his yard the CEL came on and the temp didn't decrease, it increase just a little so I cut the car off and waited about 30 mins or so. When I cut the car off it was around 180 degrees when I cut off at first stop so I'm wondering why when I started back up it said 210. After bout 30 mins drove her home and temps were around 180 and no CEL but when I did another koeo test, I got code 122 again and wondering why
i'm going to just replace the T stat also just in case it's sticking but still trying to figure out this code and why
I then backed off a little bit and got it set to where it would run without cutting off, at it's lowest idle. Thing is, the lowest it would idle without cutting off was about 900. I cut the car off and checked the TPS and it was .99 It had the 5 volt ref too. I drove her around for about 10-15 miles and it felt ok but still doesn't feel quite as it has when it has run its best and I'm talking throttle response. I stopped at one of my friends for about 5 mins and cut car off. When I started back up, the temp was at 210 and as I drove out his yard the CEL came on and the temp didn't decrease, it increase just a little so I cut the car off and waited about 30 mins or so. When I cut the car off it was around 180 degrees when I cut off at first stop so I'm wondering why when I started back up it said 210. After bout 30 mins drove her home and temps were around 180 and no CEL but when I did another koeo test, I got code 122 again and wondering why
i'm going to just replace the T stat also just in case it's sticking but still trying to figure out this code and why