Please help. Lots of codes....

[Timmaa]

Hello all,

I've only had my 'Y' plate Leon Cupra T for 9 days and since day 5 I've had problems. First the ESP dash light flashed up and stayed on for the duration of a journey, and then my engine management light came on!!

First I should mention that the car was clear of codes on day 1 (we checked). My brother is an auto-spark and he read the codes with his Snap-On tool yesterday. Here's what he found.

Engine management i/f:

17705 - Turbo/throttle valve connection pressure loss (P1297)

17545 - Bank 1, long term fuel trim (add). System too rich. (P1137)

17978 - Engine ECU blocked (P1570) - Error occurs intermittent.

16486 - Mass airflow sensor - G70. Signal too low. (P0102) - Error occurs intermittent.

Traction control i/f:

01314 - Engine ECU. Read trouble codes. Error occurs intermittent.



As you can imagine, I'm pretty hacked off at the moment. The car does seem to be driving sweetly though.

I've forwarded the codes to the dealer who will be getting back to me today with a proposal to sort it out. Can anyone give me any information or advice to put me in a position of strength? I'd be extremely grateful!

 

[m0rk]

Code 2 is caused by Code 4 (your maf is dead, and probably so is the lambda probe)

Code 1 I think is a leaky Dump Valve

3 & 5 might be down to the tool used to read the code.

 

[Timmaa]

Thanks for your quick reply Mark. I'll email that to the dealer and hope I get a positive response.

 

[Timmaa]

I'm taking the car in on Tuesday. The dealer reckons that there is probably one part faulty which is causing everything else. I've mentioned the MAF but will also pick him up on the dump valve code when I take it on Tuesday.

Dump valves aren't too expensive, but I think MAF's are a tad more pricey so I have to prioritise.

Thanks for your help Mark.

I'll report back how I get on.

 

[ZBOYD]

MAF's maybe expensive, but if they are faulty, they can lead to very expensive problems, if the car was to run too lean for example because the MAF is giving faulty readings, that can lead to engine damage or worse even complete engine failure.

A flakey leaking DV may lead to premature turbo failure.

 

[Timmaa]

I will push to have them both repaired. I've only had the car 9 days so I'm within my rights.

I'm also lucky enough to have my brother down the road with the Snap-On ECU reader to keep checking while the car's within it's 3 month warranty period.

 

[Timmaa]

Update

On Thursday morning the car was sent by the dealer to a turbo specialist, who then telephoned me directly to talk about the codes and the problems I was experiencing. The guy was spot-on, really knew his business and was straight as a die. I'll be taking the car back there for it's annual service this time next year.

I've had a call this evening to tell me I can pick the car up tomorrow. There was a hole in a pipe between throttle and turbo, and the MAF has been replaced. I'm not sure about the lambda sensor yet, but will get a copy of all receipts for my service history.

Thanks very much for all the help. Without your advice I would have been at the dealer's mercy. We'll see how it drives tomorrow.