Hello, ive got a r32 gtr, ive had it for a little over two years now and have had no issues with it. However, a few weeks ago I started having this bogging down effect while I was on the highway. I stopped at a drive thru and my car started bogging down even more until it would stall and i would have to restart it, even then it would keep dying on me. I managed to get it back to my house barely lol. So the next day I tried starting it, and It ran fine for about 5 to 6 seconds, then would start bogging down real bad and I could only keep it alive by keeping my foot on the pedal, would still eventually stall out though. So I checked all the vacuum lines, borrowed my buddies MAF sensors, checked intercooler piping, pretty much all the obvious things. Tried downloading the code and it gave me a 55 which meant no error, then today i tried downloading the code after starting it again, and it gave me error code 41, which i believe is the air temp sensor. So I pulled that out and it definitely looked a little crusty, so i tried cleaning it. Still no luck with it though, Im just trying to figure out If i should order a new air temp sensor, or keep digging into the issue. Thanks for any help
Need help diagnosing issue with idle/stallingR32
Posted 04 April 2021 - 09:30 PM
Well since it gave you the air temp. sensor code I would start with a new one of those.
Then move on to the coil packs. RB’s are notorious for “cooking” the ignition coil packs.
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Posted 05 April 2021 - 09:33 AM
As far as I know the air temp sensor in R32 doesn't do much or if anything at all, it may just be a fail safe. In fact, it is the exact same sensor as the coolant temp sensor next to it, so you can just swap the two and see if that helps. It's also not difficult to test, just get a cup of hot water and measure the resistance. It's also relatively cheap, so feel free to drop some bucks if you want to have a piece of mind.
Are you able to accelerate but only bogs down and stall when you lift? If so the problem may be with the TPS. But based on your descriptions, I would guess your trouble is with the fuel system, or potentially the control for your fuel system, ie. FPCM.
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