Trouble codes

'Fraid Knot · Jan 11, 2009

I have a 02 disco II w/70k, check engine light came on and I pulled these codes.
1: P1481 heater power stage drive cycle A:signal missing
2: P1412 secondary air system fault bank 1 drive cycle D:signal implausible
3: P1415 secondary air system fault bank 2 drive cycle D:signal implausible

I just replaced the purge valve canister a week ago. Replaced the spark plugs while I was at it. The only mods are a K&N filter and a safari snorkel. I found a possibilty for 2&3, I may have disturbed a vacume line when I changed the purge valve. But I still can't find these codes listed anywhere. Any ideas? Thanks

'Fraid Knot · Jan 13, 2009

Wow no response, not even telling me I'm an idiot. I've checked the vacume lines and they seem fine. Cant find anything I may have messed up. Don't wanna have to go to the dealer but its looking that way :frown:

Ahh well.....

joey · Jan 13, 2009

really sorry, I have been rather busy... I will try to find out something for you tomorrow, need to do some research on this, since I don't recall hearing about this one.

'Fraid Knot · Jan 14, 2009

No problem. Started running funny today, so wife is at dealer as I type. So far from what shes called and told me there is something that pressurizes the purge valve system and that may be whats wrong so they are testing that. Sounds $$$$ to me, about to search for that unnamed part. Post more when I know it.

'Fraid Knot · Jan 14, 2009

The wife called and dealership is not sure yet :stupid:

So they are giving her a loaner, a ford escape. I think she offended them........... All I wanted was a diagnostic. This is gonna be expensive :hmpf:

joey · Jan 15, 2009

Found out it is probably the valve the controls both of the secondary air valves... it is right about the purge valve.

'Fraid Knot · Jan 15, 2009

Ok according to the dealer, the problem is the DMTL pump also known as the evap pump. Anybody wanna back them up on that? Sound possible? I know nothing about emission systems. Its a $300+/- part, depending on where you look.

I'm gonna take the hit and let the dealer fix it. :argh:

joey · Jan 15, 2009

That is about right, and the part that I was thinking about. None of the secondary air parts are cheap...

'Fraid Knot · Jan 16, 2009

Thanks for your help and time Joey. Wife picked it up from dealer this afternoon, said its running like a top again. They even detailed it. Thanks again :hello:

joey · Jan 16, 2009

Wish I could have helped more, but there are some things I have not seen or heard about. Secondary air is normally a Cali thing, but they do get out of lock down and end up all over..

Trouble codes

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