More problems

I have only dabbled with the 928 Diag tool. It wasn't willing to communicate with my GT. It had a windows interface, so seemed like an improvement. I think the newer version of that is better as well.

Stan.Shaw@Excell.Net;1602 wrote: I haven't used it, so don't know. I would anticipate it is better or cheaper, or both, otherwise it wouldn't need to exist

Thats why he is the prezz, because he is so smart.

Sorry rluvsporsche, we are just trying to hash out the best way to help you.
If someone (member) lives close by with a scanner or that can get access to one, it may be the quickest, cheapest, fix.

You know it won't be me unless you move a few thousand miles north.

KilnRed;1592 wrote: The part about the EZK is strange. Not a usual 928 area of concern. I have heard of similar situations when switching the LH though. I have seen where one LH would operate two different cars and another LH would work in one, but not both. Weird, huh? :confused:

What was your fuel pressure when you checked it? Also, have you checked your vacuum since replacing the vacuum lines? Your compression figures are unusually high. So high, in fact, that it's either not accurate or there is a problem on one or more neighboring cylinders. Did you document your compression for each cylinder?

It’s definitely weird. The guys helping me out said the same thing that EZK is not common problems and they don’t know anyone who has EZK failure. We put a fuel pressure gauge permanently at the end of the rail it reads 45-55 at idle and when car off. Yes the vacuum lines are good. This is what we came up with cyl 1-8, 210,210,210,210,210,213,210,210 with hot engine. I’m no expert and can find in my manual the right specs but all 4 928 buddies said they are good numbers.

SeanR;1598 wrote: My first guess from reading this and the corresponding one AO put up, had me thinking O2 or Temp II. I'm sure it was checked, but how were the wires to the Temp II?

We tested the car using shark tuner with 02 sensor connected ro exhaust. I also check the Temp 2 it witin specs. :confused:

928mac;1604 wrote: Thats why he is the prezz, because he is so smart.

Sorry rluvsporsche, we are just trying to hash out the best way to help you.
If someone (member) lives close by with a scanner or that can get access to one, it may be the quickest, cheapest, fix.

You know it won't be me unless you move a few thousand miles north.

No problem, for the past few days I've been going through my factory repair manual and unfortunately my 87 does not support scanner of any sort. Also looking for grounds to check because the guys think it might be a bad ground so I found 97-01 and 97-02 all the ground points on the car. I'm no mechanic so what's good ground when using an OHM meter?

rluvsporsche;1613 wrote: We tested the car using shark tuner with 02 sensor connected ro exhaust. I also check the Temp 2 it witin specs. :confused:

How did you test the temp II? It is a thermistor meaning that its resistance changes according to temperature. Did you check it cold? What was the exact temperature when you checked it and what was the resistance? Also, did you check it at a different temperature range? The more details you share, the more effective we can be helping you.