Code 22 41 and 51 replaced parts still has CEL

Cinciguy90Turbo · 04-02-2011, 01:54 PM

I've been having some rough idling issues, stalling and falling on its face during acceleration. The CEL says that its 22, 41 and 51. I have tried adjusting the TPS, and the same results continue, so I bought a new one and put it on as well as a new coolant temperature sensor and thermostat (the car would not heat up past 160 degrees). It is now running at 195 or so but the CEL is still on for all three codes. I have tried resetting the ECU by unplugging the battery until the clock and radio reset. It seems to be running a little better but I drove about 40 miles and used about 4 gallons on gas. It stalls less, and idles a little better. If anyone can point me in any direction it'd be greatly appreciated.

cre · 04-02-2011, 08:35 PM

Code 41 isn't something you adjust for... it's flat out a bad TPS, ECU or wiring.... TPS and bad wiring being the more common two and TPS being the most common of all.

You don't need to disconnect the battery entirely to reset the ECU, the EFI fuse does the same job and you don't have to reset the clock and your stereo settings.

Cinciguy90Turbo · 04-02-2011, 08:46 PM

Is replacing the wiring an electrical nightmare, since I just changed the TPS? And would that be why I have a "bad" coolant temp sensor as well?

cre · 04-03-2011, 01:56 AM

The have a common ground:

http://www.cygnusx1.net/Supra/Librar...px?S=Main&P=48

Start testing.

Cinciguy90Turbo · 04-03-2011, 01:21 PM

so the best way to do that is to unwrap it and start probing with a multi meter.

04-02-2011, 01:54 PM	#1
Cinciguy90Turbo Stock Join Date: May 2009 Location: Cincinnati Posts: 16	Code 22 41 and 51 replaced parts still has CEL I've been having some rough idling issues, stalling and falling on its face during acceleration. The CEL says that its 22, 41 and 51. I have tried adjusting the TPS, and the same results continue, so I bought a new one and put it on as well as a new coolant temperature sensor and thermostat (the car would not heat up past 160 degrees). It is now running at 195 or so but the CEL is still on for all three codes. I have tried resetting the ECU by unplugging the battery until the clock and radio reset. It seems to be running a little better but I drove about 40 miles and used about 4 gallons on gas. It stalls less, and idles a little better. If anyone can point me in any direction it'd be greatly appreciated.

04-02-2011, 08:35 PM	#2
cre Toyota Racing Development Join Date: Apr 2007 Posts: 5,038	Code 41 isn't something you adjust for... it's flat out a bad TPS, ECU or wiring.... TPS and bad wiring being the more common two and TPS being the most common of all. You don't need to disconnect the battery entirely to reset the ECU, the EFI fuse does the same job and you don't have to reset the clock and your stereo settings. __________________ If something breaks or you need to contact a member of the administration please post HERE. Unless it's a private or administration matter please post it on the forum. It benefits no one else if car related questions aren't posted for future users and takes away from the time I'm able to spend helping on the rest of the forum. If you're so inclined I'm always more than happy to accept tips via PayPal. Tip Jar --->

04-03-2011, 01:56 AM	#4
cre Toyota Racing Development Join Date: Apr 2007 Posts: 5,038	The have a common ground: http://www.cygnusx1.net/Supra/Librar...px?S=Main&P=48 Start testing. __________________ If something breaks or you need to contact a member of the administration please post HERE. Unless it's a private or administration matter please post it on the forum. It benefits no one else if car related questions aren't posted for future users and takes away from the time I'm able to spend helping on the rest of the forum. If you're so inclined I'm always more than happy to accept tips via PayPal. Tip Jar --->

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04-02-2011, 08:46 PM	#3
Cinciguy90Turbo Stock Join Date: May 2009 Location: Cincinnati Posts: 16	Is replacing the wiring an electrical nightmare, since I just changed the TPS? And would that be why I have a "bad" coolant temp sensor as well?

04-03-2011, 01:21 PM	#5
Cinciguy90Turbo Stock Join Date: May 2009 Location: Cincinnati Posts: 16	so the best way to do that is to unwrap it and start probing with a multi meter.