Fuel Fault Code

[indiemike]

I am getting the fault code

17545 - fuel trim: bank 1 (add)

P1137 - 35-00 - system too rich

Could this be caused with a decat??

Car is not mapped

Thanks

 

[Gaz7]

Yeah it's a possibility..

Or dodgy Maf...

Or blocked fpr...

Or boost least...

Log blocks 032 and 001 on idle and consistent throttle (like, cruising along)

 

[mty12345]

No it shouldn't affect it, as the sensor that is used to monitor the mixture is before the cat. As gaz says logs those blocks, most likely a boost leak somewhere.

 

[Gaz7]

After re thinking my input, and with the above input, post cat sensor shouldn't be able to have any affect on fuel trims, it would be throwing an 02 fault . It's only really there to check your cat is working. I suppose it's a possibility that it could be the previous cat lambda. But really you need to so some logs, and figure out if it's rich because the ecu is correcting to add more fuel for some reason . Or if it's putting in the fuel requested with no corrections going on, then it means you're missing the air aka boost leak

 

[indiemike]

I'll measure the blocks this weekend.
Just looked and the crankcase breather is split, so that needs changing and getting my mate to do a boost leak check next week.

Hopefully something simple