Hello new to forum got a overfuelling problem

[JimmyT]

Hi everyone new to the forum.

Bought a cupra on friday but the engine light is on, the guy says its overfuelling and needs a map to solve this. Is this likely to fix the issue? its got forge intercooler turbo back exhaust and all the hoses done. The engine management light is on does this mean that the car is in limp mode as it seems like it should be much quicker than it is.

Thanks in advance

 

[Big_daddy]

You need to get it checked on diagnostic to retrive the fault codes1

 

[JimmyT]

hopefully going to lend my mates vagcom today

 

[tommy2008cupra]

ye get it on vagcom mate and post results so we can help could possibly be coolant temp sensor however get it on vagcom to see what code it brings up

 

[JimmyT]

ye iv heard that can cause it its had lambda sensor changed and that o2 sensor too so it can only be coolant or need a remap i suppose. Can it damage the engine running it rich?

 

[tommy2008cupra]

wat map has it got now??? if it is standard id prob say its not the map more likely to be coolant sensor telling the engine to chuck in too much fuel, i dont think it will do much damage but performance will suffer as a result, best idea is get it on vagcom mate otherwise we could guess allday

 

[JimmyT]

does anybody know the part number for the sensor i would need?

 

[tommy2008cupra]

part number for GSF is 929VG0173

 

[JimmyT]

thanks mate will get one ordered

 

[JimmyT]

got my mate to plug vag com in last night and there were about 5 errors, some of which i know have been fixed by previous owner. He cleared them all and it was F***in mental!! so much better but then after 50 miles the light came back on so going to get him to see which of the 5 has come back and fix it.

 

[JimmyT]

Here is the error

VAG-COM Version: Release 409.1-S


Chassis Type: 6K - Seat Ibiza
Scan: 01,02,03,08,15,17,25,35,56

-------------------------------------------------------------------------------
Address 01: Engine
Controller: 6K0 906 032 AA
Component: 1.8L 20VT EU3 0002
Coding: 10500
Shop #: WSC 00001
2 Faults Found:
17964 - Charge Pressure Control: Negative Deviation
P1556 - 35-10 - - - Intermittent
17535 - Shareware Version. To Decode all DTCs
P1127 - 35-00 - Please Register/Activate
Readiness: 0010 1000

-------------------------------------------------------------------------------
Address 03: ABS Brakes
Controller: 1J0 907 379 AF
Component: ASR 20 IE CAN 0001
Coding: 13404
Shop #: WSC 00000
No fault code found.

 

[tommy2008cupra]

http://wiki.ross-tech.com/index.php/17964/P1556/005462

here you go sounds like u possibly have a vac leak

also:Running Lean – VAC Leak, MAF, O2 Sensor, Fuel Filter

 

[JimmyT]

got this error today

VAG-COM Version: Release 409.1-S

Control Module Part Number: 6K0 906 032 AA
Component and/or Version: 1.8L 20VT EU3 0002
Software Coding: 10500
Work Shop Code: WSC 00001
2 Faults Found:
17511 - Oxygen (Lambda) Sensor Heating: B1 S1: Performance too Low
P1103 - 35-10 - - - Intermittent
17964 - Charge Pressure Control: Negative Deviation
P1556 - 35-00 - -

 

[tommy2008cupra]

new lamda by the looks mate causing the original code negative deviation

 

[JimmyT]

anybody have a part number im struggling. Thanks !

 

[tommy2008cupra]

Lambda probe before cat: 06a 906 265 N Approx £90
Lambda probe after cat: Part no. 6K0 906 262 B Cost from dealership - £96.21 + VAT
Manufacturer Part........................................Bosch Part No:
06A906260N (Front sensor)...........................0258006213
6K0906262B (Rear Sensor)...........................0258006266

 

[JimmyT]

do tuned ibizas still run on a standard lambda sensor or do they need a diffeent higher performance one. My mate says he thinks it might just be the ecu that needs remapping to tell it that the level of oxygen should be as high as it is now? Is he talking rubbish or is there some truth there?

 

[s1l3nc3r]

All the same standard lambda's mate.

The post cat lambda can be mapped out and is mapped out with stage 2 mapping.

Sounds like you need a new one.

 

[JimmyT]

cheers will get one ordered

 

[JimmyT]

replaced the lambda and thought it had sorted it... the engine light came back so put it on vagcom and got this..


VAG-COM Version: Release 409.1-S

Control Module Part Number: 6K0 906 032 AA
Component and/or Version: 1.8L 20VT EU3 0002
Software Coding: 10500
Work Shop Code: WSC 00001
3 Faults Found:
17964 - Charge Pressure Control: Negative Deviation
P1556 - 35-10 - - - Intermittent
16514 - Oxygen (Lambda) Sensor B1 S1: Malfunction in Circuit
P0130 - 35-10 - - - Intermittent
17535 - Fuel Trim: Bank 1 (Mult): System too Rich
P1127 - 35-00 - -



Also looked at FPR and it says 4.0 bar on the back so im thinking somebody before has got it fitted and not had it remapped?

Do you think a remap would sort it?