crank position sensor

idice · #1 01-30-2005, 05:07 PM

anybody knows where the crank position sensor is located???

0fframp · #2 01-30-2005, 10:16 PM

Year and model?

idice · #3 03-20-2005, 08:42 PM

1993 audi 100s

gmatov · #4 03-21-2005, 04:28 AM

I'll bite on this one. Mebbe Offramp can help me, too.

On my 85 5000 Turbo, 2 sensors on the juncture between the engine and transaxle, easily seen.

My 87 non-turbo, I dunno, can't find them.

My '90, 100, can't see them, and no book. There ain't no book, according to Haynes, and I refuse to pay 150 + for the Bently book.

But, they gotta be there, no?

Cheers,

George

0fframp · #5 03-22-2005, 11:57 AM

2.8 V6 is not my specialty or at least I didn't get around to dissect one in person.

The Bentley manual for my model year is very confusing as I can't figure if my 1991 100Q is supposed to have one or not. I can't find one but the manual mentions them, I think that they are only used on the turbo motors. Manufacturers usually have two places to put them, the harmonic balancer/pulley up front or on the ring gear.

Why are you looking for the sensors?

gmatov · #6 03-23-2005, 03:34 AM

Offramp,

If that is aimed at me, it's because the 87 was supposed to be a driving car, great body, etc, but have never been able to get the damned thing even to fart, let alone fire. You know, 2 combustions in a row. Nischt. Not a pop. Crank sensor? Maybe that's it!!! 29 degrees out of time, even though I have been a mechanic all my life, 60 years now, and am pretty sure I know how to time an engine's valve train. Trained as a diesel mechanic near 40 years ago, loved my Audi diesels.

In fact, the reason I bought the vehicle to begin with, an 87 5000 with a parts car to boot, for 300 bucks, was that I, "I", mind you, knew more than the owner who had given up on it. "I" could fix it in minutes, just time the valves right, then the ignition.

Shit, 2 years later, it's a parts car to canibalize. Has saved me a buck or a 100 in parts on the 90. Have to check to see if the rear disks are the same on the 87 5000 as on the 90 100. Need a left rotor to be cut and pads replaced.

What's a good brand of disk pads?

Cheers,

George

0fframp · #7 03-23-2005, 12:21 PM

Oops! The previous reply was meant for Idice.

I think that the crank position sensor was used on cars with LH-Jetronic systems starting with the 1990 20V Turbo, V8, etc. I Donâ€™t know why the sensor would be needed on CIS-Jetronic III equipped cars as they had a rather conventional electronic controls. If I am not mistaken the crank TDC trigger was more for redundancy.