01 r/t codes

[chigowolfs76]

Need help on two codes,
the car is a 2001 neon r/t. The codes are p1390 and p0420

Thanks
Scott

[das2123]

Originally Posted by chigowolfs76

Need help on two codes,
the car is a 2001 neon r/t. The codes are p1390 and p0420

Thanks
Scott

P1390 = TIMING BELT SKIPPED 1 TOOTH OR MORE
P0420 = CATALYST 1/1 EFFICIENCY FAILURE

[chigowolfs76]

OK how much of a PIA is it to get the timing belt back into spec??? becaue right now I have no problem with it, LOTS of HP, and the idle is smooth I think right now more then before.... And On the 2nd code, I was waiting on that one, since I dont have a cat conv anymore on the car!!!!

[das2123]

Originally Posted by chigowolfs76

OK how much of a PIA is it to get the timing belt back into spec??? becaue right now I have no problem with it, LOTS of HP, and the idle is smooth I think right now more then before.... And On the 2nd code, I was waiting on that one, since I dont have a cat conv anymore on the car!!!!

You would have to verify the code first. If it did skip a tooth, then that would be bad news, but you say the car is running strong. So I am not sure what to think then. The second would be no bother since your cat is removed.

[chigowolfs76]

I will swing by AZ after work and get the code read by them, since I need a PS belt... Lost mine on the way to work, I think it walked off the Idler...

[chigowolfs76]

If it did skip a tooth, I would have to rip apart everything, wouldnt I , like take the head off again

[das2123]

Originally Posted by chigowolfs76

If it did skip a tooth, I would have to rip apart everything, wouldnt I , like take the head off again

If it skipped a tooth then you mave have some bent valves. You might want to try a compression test before ripping the head off again.

[chigowolfs76]

ok I pull the P1390 code it was the same as I looked up last night with the timing skiped 1tooth or more, but the defination I had was "Relationship between Cam and Crank signals not correct"

[das2123]

Originally Posted by chigowolfs76

ok I pull the P1390 code it was the same as I looked up last night with the timing skiped 1tooth or more, but the defination I had was "Relationship between Cam and Crank signals not correct"

I have heard of this P1390 code being a problem and being related to the cam/crankshaft position sensor. Have you tried resetting your PCM and see if that helps any? Do you have an aftermarket cam gear/s? I have heard that advancing the timing helps to resolve the code.

[chigowolfs76]

I will stop at AZ have the clear the code and see if that makes a diffrents... and by the way, if you dont mind I added you to my yahoo and AIM list

[chigowolfs76]

Oh, and no I dont have any after market stuff on my car, it is all stock

[das2123]

Originally Posted by chigowolfs76

Oh, and no I dont have any after market stuff on my car, it is all stock

Are you certain that you had everything lined up correctly then?

[chigowolfs76]

I wasnt there at the time my brother put the head on..... so I have no flippen clue, he claims it was DTC, like I said it is running strong, maybe the timing is retarded a little, that why it is throwing the code. I will do a compression check tonight and see if everything there checks out. if the compression is find, should I not worry about that code then?

[das2123]

Originally Posted by chigowolfs76

I wasnt there at the time my brother put the head on..... so I have no flippen clue, he claims it was DTC, like I said it is running strong, maybe the timing is retarded a little, that why it is throwing the code. I will do a compression check tonight and see if everything there checks out. if the compression is find, should I not worry about that code then?

If the compression tests come out good, then I would want to say don't worry. But the fact is the code probably will not go away either. Eventually you will want to make sure it is at TDC. I have seen alot of cases where people swore up and down they had the alignment correct, but when rechecking their work, they were wrong.

[chigowolfs76]

Knowing by brother, and the way he wants to hurry at times, I am sure it is off a little, It is running strong, I will check the compression tonight, I am not worried about the CEL because until I put a new cat on I will have that light on, I am in the process of finding someone with a welder That I can borrow