mk1 tolly Codes help

[Dave_88]

I got these results can anyone help? Thanks.

VAG-COM Version: Release 409.1-S

Chassis Type: 1L - Seat Toledo... See more
Scan: 01,02,03,08,15,25,41,56

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Address 01: Engine
Controller: 028 906 021 BT
Component: 1,9l R4 EDC SG D1P
Coding: 00000
Shop #: WSC 00000
5 Faults Found:
00539 - Fuel Temperature Sensor (G81)



30-00 - Open or Short to B+
00777 - Accelerator Position Sensor (G79)



28-00 - Short to B+
00777 - Accelerator Position Sensor (G79)



28-00 - Short to B+
00741 - Brake Pedal Monitoring



27-10 - Implausible Signal - Intermittent
00513 - Engine Speed Sensor (G28)



00-10 - - - Intermittent
Readiness: N/A

-------------------------------------------------------------------------------
Address 03: ABS Brakes
Controller: 3A0 907 379
Component: ABS ITTAE 20 GI V00
Coding: 06406
Shop #: WSC 11111
No fault code found.

-------------------------------------------------------------------------------
Skipping Address 15-Airbags

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Address 25: Immobilizer
Controller: 1H0 953 257 B
Component: IMMO VWZ3Z0T1319337 V00
Coding: 09600
Shop #: WSC 02126
No fault code found.

End --------------------------------------------------------------------------------------------------

cleared code and these came up

VAG-COM Version: Release 409.1-S

Control Module Part Number: 028 906 021 BT
Component and/or Version: 1,9l R4 EDC SG D1P



Software Coding: 00000



Work Shop Code: WSC 00000
5 Faults Found:
00553 - Mass Air Flow Sensor (G70)



28-00 - Short to B+
00539 - Fuel Temperature Sensor (G81)



30-00 - Open or Short to B+
00522 - Engine Coolant Temperature Sensor (G62)



30-00 - Open or Short to B+
00777 - Accelerator Position Sensor (G79)



27-00 - Implausible Signal
00741 - Brake Pedal Monitoring



27-00 - Implausible Signal

 

[Dave_88]

Anyone? Im guessing i need a new MAF but what else?

 

[BeartheBruce]

I would be looking at a wiring diagram for the car to find what is common to all these devices. I think you have a bad relay or a bad sensor reference voltage - something like that which results in all these sensors failing. I would not replace the MAF at this point. Get a copy of a wiring diagram and begin looking into possibilities. You can buy a subscription for one day access to the SEAT factory repair info on the erwin.seat website. You should be able to view the wiring diagrams for your car on that web site.

When you find the common element, begin your search there. You will probably need to use a DVOM (Digital Volt Ohm Meter) to trace the problem.