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Engine Specific Info and Questions => TDI Engine -General Info => Topic started by: Turbofan on September 18, 2008, 07:48:51 am

Title: Wiring question for all you E-TDI experts
Post by: Turbofan on September 18, 2008, 07:48:51 am

So I'm in the process of doing a pinout for a '98 TDI Beetle ECU, and while I was pondering my Bentley wiring diagrams, I couldn't help but notice they refer to the ECU connector as a "T121" connector, when in fact the ECU only has 80 pins. Can anyone clarify this for me? I appreciate your time...

Title: Wiring question for all you E-TDI experts
Post by: the caveman on September 18, 2008, 10:36:53 am

There are 2 connectors- one has 80 and the other has the balance.

Title: Wiring question for all you E-TDI experts
Post by: Turbofan on September 18, 2008, 11:07:28 am

My ECU has 2 connectors, a 53 pin connector, and a 27 pin connector. I'm  thinking the discrepancy is that this is a non-immobilizer ecu, hence the 42 less pins. What go you think?

Title: Wiring question for all you E-TDI experts
Post by: the caveman on September 18, 2008, 12:07:46 pm

Yes it's possible. i will try to dig a little more .

Title: Wiring question for all you E-TDI experts
Post by: Turbofan on September 23, 2008, 06:09:22 am

For anyone else who runs into this, the immobilizer is the difference. I found an alternate diagram from Mitchel's, that covers the 80 pin '98 New Beetle ECU.