Here come the codes... :(
Thread Starter
Burning Brakes
Joined: Oct 2007
Posts: 871
Likes: 0
From: TX
St. Jude Donor '11
Here come the codes... :(
Two weeks into ownership, the DIC codes are starting to roll in like crazy. The car has Stainless Works headers, and a halltech intake.
u1255
u1016
u1064
u1040
u1176
u1088
u1160
P0410
P1415
They all seem to be computer issues... And most of them said "History", however the P1415 said "Current". Just trying to keep this beast running in top form without codes popping up every 30 seconds.. The car runs great, no power loss, and all the electronics and everything seem to work just fine....
Thanks in advance..
u1255
u1016
u1064
u1040
u1176
u1088
u1160
P0410
P1415
They all seem to be computer issues... And most of them said "History", however the P1415 said "Current". Just trying to keep this beast running in top form without codes popping up every 30 seconds.. The car runs great, no power loss, and all the electronics and everything seem to work just fine....
Thanks in advance..
Drifting
Joined: Oct 2002
Posts: 1,773
Likes: 66
From: SoCal
Two weeks into ownership, the DIC codes are starting to roll in like crazy. The car has Stainless Works headers, and a halltech intake.
u1255
u1016
u1064
u1040
u1176
u1088
u1160
P0410
P1415
They all seem to be computer issues... And most of them said "History", however the P1415 said "Current". Just trying to keep this beast running in top form without codes popping up every 30 seconds.. The car runs great, no power loss, and all the electronics and everything seem to work just fine....
Thanks in advance..
u1255
u1016
u1064
u1040
u1176
u1088
u1160
P0410
P1415
They all seem to be computer issues... And most of them said "History", however the P1415 said "Current". Just trying to keep this beast running in top form without codes popping up every 30 seconds.. The car runs great, no power loss, and all the electronics and everything seem to work just fine....
Thanks in advance..
The U codes are for "no communication" of a device or devices. Usually a ground issue.
Did you install the headers and intake. Possibly loosen a ground. There is mention of the PCM sending a ground to the AIR system which seems to be your issue with the "P" codes. Could all be related. That link is a great source of info for diagnosing codes that pop up.
Thread Starter
Burning Brakes
Joined: Oct 2007
Posts: 871
Likes: 0
From: TX
St. Jude Donor '11
No, I did not install the headers or intake.. they were on the car when I got it. The owner before me had it tuned with a Predator, and de-tuned it when I went to pick it up... He said (and I believe him) that he never had any codes at all... I am guessing the reason he never had any codes was because he had it tuned. He is going to send me the tuner so by the end of the week I should hopefully have this stuff sorted out.
Also, there is no harm on driving on this is there? Like I said it is running great, stout as ever.
I appreciate the help RRZ.
Also, there is no harm on driving on this is there? Like I said it is running great, stout as ever.
I appreciate the help RRZ.
Drifting
Joined: Oct 2002
Posts: 1,773
Likes: 66
From: SoCal
If he de-tuned it with the predator then I would have to say just go in and delete all the codes and see if they come back. I have the predator too. After a tune I have had the "u" code errors so those are probably because of the "de-tune" and wont come back. the "p" codes may or may not come back, but I would delete the codes and see if they come back. If the car is driving with no ill effects then I would imagine it would be fine to still drive it.
Racer
Joined: Dec 2001
Posts: 452
Likes: 2
From: Lynnfield MA
From experience, I think you'll find that "U" codes show up from
time to time, and don't mean anything unless they are "current".
If no one had pulled codes on this car in a long time, then they
were probably just piled up in there. As suggested, delete them
and don't worry about the "U" codes.
The P1415 (and it's infamous cousin P1416) are the AIR check
valve codes, and this is a common failure. Luckily, yours is the
easy one to get at on the driver's side of the engine...
time to time, and don't mean anything unless they are "current".
If no one had pulled codes on this car in a long time, then they
were probably just piled up in there. As suggested, delete them
and don't worry about the "U" codes.
The P1415 (and it's infamous cousin P1416) are the AIR check
valve codes, and this is a common failure. Luckily, yours is the
easy one to get at on the driver's side of the engine...
Last edited by SilvaDragon; Dec 20, 2007 at 02:03 PM. Reason: typo
Thread Starter
Burning Brakes
Joined: Oct 2007
Posts: 871
Likes: 0
From: TX
St. Jude Donor '11
From experience, I think you'll find that "U" codes show up from
time to time, and don't mean anything unless they are "current".
If no one had pulled codes on this car in a long time, then they
were probably just piled up in there. As suggested, delete them
and don't worry about the "U" codes.
The P1415 (and it's infamous cousin P1416) are the AIR check
valve codes, and this is a common failure. Luckily, yours is the
easy one to get at on the driver's side of the engine...
time to time, and don't mean anything unless they are "current".
If no one had pulled codes on this car in a long time, then they
were probably just piled up in there. As suggested, delete them
and don't worry about the "U" codes.
The P1415 (and it's infamous cousin P1416) are the AIR check
valve codes, and this is a common failure. Luckily, yours is the
easy one to get at on the driver's side of the engine...
Racer
Joined: Dec 2001
Posts: 452
Likes: 2
From: Lynnfield MA
There isn't a "fix" in the sense that anything was ever wrong to
begin with. The many computers in the car communicate over
a bus with each other, but a moving car is a hostile electronics
environment, so from time to time communications are disrupted
and the codes are set, but then everything is fine, so the code
remains as a "history" code.
If you found the codes popping up a lot, it might indicate that
you were having grounding issues that were muddling the signal,
but other than that, a few "U" codes a year are nothing to be
concerned about.
begin with. The many computers in the car communicate over
a bus with each other, but a moving car is a hostile electronics
environment, so from time to time communications are disrupted
and the codes are set, but then everything is fine, so the code
remains as a "history" code.
If you found the codes popping up a lot, it might indicate that
you were having grounding issues that were muddling the signal,
but other than that, a few "U" codes a year are nothing to be
concerned about.
Racer
Joined: Dec 2001
Posts: 452
Likes: 2
From: Lynnfield MA
Oops, I just realized that you were probably talking about
the P1415 code. Pull the rubber hose off the valve and
spray it with WD40 or liquid wrench. Folks have had good
luck keeping the valves from sticking with that approach.
If P1415 shows up a lot, you can get one for pretty cheap
at the dealer and install it in a few minutes.
the P1415 code. Pull the rubber hose off the valve and
spray it with WD40 or liquid wrench. Folks have had good
luck keeping the valves from sticking with that approach.
If P1415 shows up a lot, you can get one for pretty cheap
at the dealer and install it in a few minutes.
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Thread Starter
Burning Brakes
Joined: Oct 2007
Posts: 871
Likes: 0
From: TX
St. Jude Donor '11
It also seems that the P1415 code stems from the P0140 code which is 02 Sensor related... Since I have headers I don't even know if I have cats... thus the reason the untuned car might be crying about that. I cleared the codes just after this thread and the codes have not come back yet. The P1415 code was "H C" so there before, and still there at that time. My Predator will be in on Wednesday and we'll see how the car reacts to a "tune".
Racer
Joined: Dec 2001
Posts: 452
Likes: 2
From: Lynnfield MA
It also seems that the P1415 code stems from the P0140 code which is 02 Sensor related... Since I have headers I don't even know if I have cats... thus the reason the untuned car might be crying about that. I cleared the codes just after this thread and the codes have not come back yet. The P1415 code was "H C" so there before, and still there at that time. My Predator will be in on Wednesday and we'll see how the car reacts to a "tune".
The 0410 is still related to the AIR system.
I suppose it's possible that a faulty O2 sensor before the cats
might cause a false P1415 or P1416 code to be thrown, since the
computer wouldn't be able to read the difference in O2, but I would
have expected that would be accounted for. Even without cats,
you need to have the Bank1 O2 sensors to run the EFI, and these
are the sensors that are used to monitor AIR as well.