1999 s80 Having problems with maf sensor

Jehrlich28 · Post by **Jehrlich28** » 22 Feb 2014, 16:24

I bought the car about a week and a half ago. When i purchased the car the guy told me that he had recently replaced the upper radiator hose, but did not think he had it on all the way and that it had a slight leak. So i bought the car and got it home. I looked a little closer and noticed that the radiator actually had a crack in it. So i bought a new radiator and put it in. This still did not resolve the issue. So i bought a new thermostat. I then noticed the lower radiator hose was really soft, so i replaced it as well. This is where my new issue comes into play. While replacing the lower radiator hose, i first disconnected the batter, then i unplugged the maf sensor, and then removed the air box. Once i had the new hose on i put the air box back in, with a new stp air filter, plugged the maf sensor back in, and then reconnected the battery. I filled the car back up with fluid. I then went to start the car, it started rough then died a few seconds later. I tried a few more times to start the car, but did not succeed. I also noticed that the lock button, my temp gauge, and the trunk button were not working. I then tried unplugging the maf sensor and the car started up. I tried a couple times to plug the maf sensor back in but every time i would do so the car would die. I then disconnected the battery again and checked to see if maybe i forgot to plug something in, but everything looked fine. I reconnected the battery once more and tried to start it again. This resulted in almost the same thing, only this time when i plugged the maf sensor back in it stayed running but ran really rough. Sorry about the long story, i just didnt want to leave any details out. Can someone please help point me in the right direction, i have had this car for almost 2 weeks and just want to go for a drive!

t4tees · Post by **t4tees** » 22 Feb 2014, 18:05

is the CEL On? if so what codes? I would lean towards the MAF. Call it coincidence. Codes may or may not confirm it for you. Buy a New or reman MAF & be done with it.

Jehrlich28 · Post by **Jehrlich28** » 07 Mar 2014, 15:14

I went an bought a code scanner and I'm getting quite a few codes. P0036 heated oxygen sensor heated control circuit bank 1 sensor 2. P0102 mass or volume air flow circuit low input. P0113 intake air temp sensor circuit high output. P0134 oxygen sensor circuit no activity detected bank 1 sensor 1. P0154 oxygen circuit no activity detected bank 2 sensor 1. P0756 shift solenoid b performance or stuck off. P0734 gear 4 incorrect ratio. P1618 manufacturer controlled computer output circuit. I'm not sure where to look from here...

Post by **precopster** » 07 Mar 2014, 15:54

With P2 series cars it's important that you reconnect the battery while the key is in posII . Failure to do this results in computer modules not initializing properly.

Do this first and report back. Is this a 6 cylinder T6 or a 6 cylinder non turbo?