my tdi 1z is over revving constantly. undriveable help!!!!!!

Post by **jimmypatch** » 30 Sep 2007, 15:25

Hi
my t25 has a 1993 audi 80 tdi 1Z. I had the engine put in by what i thought was a professional. I got 70 miles down the road after picking it up from conversion and the engine started over revving uncontrollably. I thought the turbo had blown so i had it recon'd but after fitting it back on the engine still revs uncontrollably any ideas please?????????

Post by **toomanytoys** » 30 Sep 2007, 15:40

Er... shouldnt you complain to your "installer"?

Checked the throttle is actually returning and nothing obstructing it?

Post by **jimmypatch** » 30 Sep 2007, 16:09

the throttle is a fly by wire type with a resistor.

Post by **Simon Baxter** » 30 Sep 2007, 16:12

Take it back.

Post by **toomanytoys** » 30 Sep 2007, 16:13

Mmmm...
re arrange these words....

Worms, of, open, can, a

You may get some assistance in the alternative engines forum, but I think if you have paid good money for the conversion you should be speaking to the converter...

Prob some wiring/sensor/noise issue....

Post by **Simon Baxter** » 30 Sep 2007, 16:22

Why does it have a resistor? or do you mean potentiometer?
I have seen some really, really gash TDI instals, and AAZ instals come to think of it, Infact, I would say most are gash.
It depends who did it, I have seen all sorts of "special" wiring, badly placed intercoolers, wires draped left right and centre, throttle pots on the bulkhead in the engine bay and "special" brackets.
If it was a "proffesional" you should have some recourse and some warranty.
or if it was some bloke on his drive and a big bag of scotch locks and a welder.....

Post by **jimmypatch** » 30 Sep 2007, 16:23

the guy who did the conversion is 130 miles away. he's does not seem interested in the problem.

Post by **jimmypatch** » 30 Sep 2007, 16:26

Yeah sorry it's got a potentiometer. The driveway cowboy with scotch locks sounds bang on. he's based in louth lincolnshire. I have got a special bracket on the bulkhead for the throttle..

Post by **Simon Baxter** » 30 Sep 2007, 16:33

Has be been clever enough to leave the diagnostics socket for you to plug it in and read fault codes?

Post by **jimmypatch** » 30 Sep 2007, 18:38

ive got the ecu complete. but thats about it. no OBD port

Post by **jimmypatch** » 30 Sep 2007, 18:40

someone hs said it might be diesel run away. where oil is being burnt. could get in from a crank case ventilation.

Post by **Simon Baxter** » 30 Sep 2007, 18:51

Does it smoke a lot?

Post by **Simon Baxter** » 30 Sep 2007, 18:51

No OBD port.
*tsk*

Post by **jimmypatch** » 30 Sep 2007, 18:55

yes it smokes loads

Post by **Simon Baxter** » 30 Sep 2007, 18:56

Drop the oil and filter and pour in 4.5l and ignore the dipstick.