Author Topic: Difference between TD and TDi (Read 5920 times)

Laurie · « **on:** January 08, 2009, 03:20:10 am »

hello i was just wandering what are the difference between the TD (AAZ) and the TDI (AHU) engines

Cheers

nogama3 · « **Reply #1 on:** January 08, 2009, 04:44:23 am »

the aaz engine has no intercooler and the ahu engine does - difference is more power and improved mpg apparently.

nogama3 · « **Reply #2 on:** January 08, 2009, 05:16:28 am »

Quote from: "NoSurrenderAG"

indirect injection vs direct injection among other details?

yep that too!

rallydiesel · « **Reply #3 on:** January 08, 2009, 06:20:28 am »

The block is basically the same and interchangeable, aside from the pistons.

nogama3 · « **Reply #4 on:** January 08, 2009, 07:17:09 am »

now we are getting a bit technical....

mattbondy · « **Reply #5 on:** January 10, 2009, 03:41:27 pm »

Are there any TDI's with a mechanical fuel system from the factory (other than something like the electronics on the AAZ)?

rallydiesel · « **Reply #6 on:** January 10, 2009, 04:21:43 pm »

Not in N. America but I think there were a few in Europe.

stewardc · « **Reply #7 on:** January 11, 2009, 04:23:49 am »

ALL TDIs have electronics. The 1.9 AAZ was the last TD (IDI) engine and it has no electronics at all.