P0171 and P0174 potential damage????
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P0171 and P0174 potential damage????
My friend that has a 2000 XKR is getting the 0171 and 0174 (+25 mark on both banks) on his system. He has been going through a series of getting the pending, then the CEL and RP, then clearing the codes and starting over, thinking at some point he will get enough "ready" readings to get a State Inspection. I think that will not work.
However, I would be concerned that with the amount of fuel that may be added to compensate for the leak ( what I think- even though we did a test of spraying ether on all the areas above the throttle body and no change in monitor readings - I am still thinking EGR area)- will not a continued LT fuel trim that is that much to the positive cause damage to the car if not corrected? I am thinking, even though no flashing CEL, this has to take a toll on the cats.
Any opinions.
Thanks
Tom in Dallas/Plano as a proxy for
2000 XKR 90K
However, I would be concerned that with the amount of fuel that may be added to compensate for the leak ( what I think- even though we did a test of spraying ether on all the areas above the throttle body and no change in monitor readings - I am still thinking EGR area)- will not a continued LT fuel trim that is that much to the positive cause damage to the car if not corrected? I am thinking, even though no flashing CEL, this has to take a toll on the cats.
Any opinions.
Thanks
Tom in Dallas/Plano as a proxy for
2000 XKR 90K
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He has new air intake, so the bellows are new and not a problem. I had already done the idle and 2500 and it shows a clear air leak. We sprayed ether, as indicated, all around that area, MAF, air filter, top of throttle body and every area that was easy to access. No go. MAF is clean. Is is possible for the MAF to go bad and never show any codes in the p0101 ranges that monitor the MAF?
I know it is most likely the ERG, as that is about all that it is left that would throw both codes.
My big concern is what will happen by driving and continuing to clear the codes and RP without fixing the problem and what damage will ensue. I was guessing the Cats will eventually start throwing a p0420 and p0430. I am surprised that it does not show a flashing CEL, but I am not driving it and who knows.
Thanks again
Tom in Dallas/Plano
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Tom
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#8
All of that is new. I am just dealing with a stubborn owner and more interested in the damage he can do by not fixing and continuing to drive. I am about 100% positive as to where the problem is, but.... well you know how some can be.
T
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i had a MAF problem with no obvious dirtiness, as well as a couple of leaks that didn't show up using a spray can.
Both were around the breather tubes - the worst was the part load breather which had a hole in it down under the charge cooler.
I saw both leaks with a smoke test (although it took me an age to actually pinpoint the part load breather leak) and recommend you try the same
the egr valve does seem quite a common problem too, equally the breathers (part load in particular) are a frequent cause of leaks
Both were around the breather tubes - the worst was the part load breather which had a hole in it down under the charge cooler.
I saw both leaks with a smoke test (although it took me an age to actually pinpoint the part load breather leak) and recommend you try the same
the egr valve does seem quite a common problem too, equally the breathers (part load in particular) are a frequent cause of leaks
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Yes damage is possible then you ignore a code that is telling you something is wrong. My suggestion would be to find out what is causing the codes.
We all understand the importance of acting on a problem but we also understand that you can lead a horse to water but you cannot make him drink.
We all understand the importance of acting on a problem but we also understand that you can lead a horse to water but you cannot make him drink.
#15
Smoke Test Limitations??
On this XKR, if someone had a problem with loose bolts or relatedproblem with the EGR, would that show easily in a smoke test or might it appear to give a false positive and lead one to think that it was the leak was coming from the duct seal that attaches the air pipe from the air filter/maf?
See attachment- from anywhere in that area and below, would a smoke test be easy to see if that area had a vacuum leak?
Thanks
Tom in Dallas/Plano
See attachment- from anywhere in that area and below, would a smoke test be easy to see if that area had a vacuum leak?
Thanks
Tom in Dallas/Plano
#16
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#17
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