Got Codes?
Thread Starter
On The Tree
Joined: Feb 2011
Posts: 121
Likes: 0
From: Orland Park
Got Codes? Ok, so i was finally able to get the codes from my car. Whats wierd is that when i first started it, it was running rough. After a few mins, it didnt change until i just slammed the gas to the floor. Then it started running fine....
. Well, the codes are 42, 23, 48, 36. Im unsure on some of them. Hopefully you guys can help.
Code 42 - PCM did not detect any est signal within 84 crankshaft revolutions..(what the hell is this?)
Code 23 - Inlet air temperature sensor signal showed an air temperature below -31° F for 60 seconds after the engine has been running for 4 minutes.(Is this because it was cold outside?)
Code 48 - There was no MAF signal when engine was on.(could this have been because i did have the maf off before and then put it back on?)
Code 36 - ECM detected less than 40 high resolution timing pulses between each low resolution pulse for 5 consecutive cycles.(Im assumming this is the opti telling me to get a new one)
Please help, i really need to get this car running well again. Also, when it was up to operating temp, if i gave it a quick jab of gas, the rpms would drop for a split second and then it would rev up. Any ideas on that? I greatly appreciate all the help. Mike
. Well, the codes are 42, 23, 48, 36. Im unsure on some of them. Hopefully you guys can help.Code 42 - PCM did not detect any est signal within 84 crankshaft revolutions..(what the hell is this?)
Code 23 - Inlet air temperature sensor signal showed an air temperature below -31° F for 60 seconds after the engine has been running for 4 minutes.(Is this because it was cold outside?)
Code 48 - There was no MAF signal when engine was on.(could this have been because i did have the maf off before and then put it back on?)
Code 36 - ECM detected less than 40 high resolution timing pulses between each low resolution pulse for 5 consecutive cycles.(Im assumming this is the opti telling me to get a new one)
Please help, i really need to get this car running well again. Also, when it was up to operating temp, if i gave it a quick jab of gas, the rpms would drop for a split second and then it would rev up. Any ideas on that? I greatly appreciate all the help. Mike
All those codes mean you have a ground issue. I would check the three grounds on the coil. One should be a double wire ground, a single wire ground, and a braided wire ground strap. Make sure the ground strap is secured at the coil on one end, and the chassis on the other end.
