Stalling Quiz: WINNER GETS $50 - PeachParts Mercedes-Benz Forum

Ivanerrol · #1 06-07-2009, 10:05 AM

Throttle control - always a suspect.

professor · #2 06-07-2009, 10:15 AM

Quote:

Originally Posted by Ivanerrol

Throttle control - always a suspect.

I checked that and compared to another unit just to make sure. They both gave the same readings off line and while in the car. Statistically that means they are fine.

Douge · #3 06-07-2009, 11:11 AM

A new car will solve the problem.

professor · #4 06-07-2009, 12:16 PM

Quote:

Originally Posted by Douge

A new car will solve the problem.

That falls under "complete systems" category.

But if you buy me a new Benz I will definitely award you the $50.

Now let's get back to the challenge here

Ivanerrol · #5 06-07-2009, 08:13 PM

Quote:

Originally Posted by Douge

A new car will solve the problem.

The Professor has changed so many expensive items he just about does have a new car - at least in the engine management systems.

Professor. When you say you have tested items for spec was this statically or did you actually change the items and run them in the car with the same results? e.g. throttle control switch, EHA or throttle micro-switch.

professor · #6 06-07-2009, 08:21 PM

Quote:

Originally Posted by Ivanerrol

The Professor has changed so many expensive items he just about does have a new car - at least in the engine management systems.

Professor. When you say you have tested items for spec was this statically or did you actually change the items and run them in the car with the same results? e.g. throttle control switch, EHA or throttle micro-switch.

I tested according to Bosch/Mercedes specs for CIS. Some were with the engine off and some with engine on. The throttle control switch was tested offline with an ohmmeter to make sure that it made contact upon closing then it was tested connected and power one where I measured voltage as I hit the throttle hence opening the switch. It's consistent.

pawoSD · #7 06-07-2009, 09:22 PM

Quote:

Originally Posted by professor

I checked that and compared to another unit just to make sure. They both gave the same readings off line and while in the car. Statistically that means they are fine.

However, did you physically remove it and check for wear/dead spots on the surface? That thing can cause a lot of weird issues when worn....

I vote for that, or a malfunctioning EZL unit (on the fender)....as was mentioned earlier, it would be a cheap and easy swap with a junk yard one. In fact, the yard by me has two 190e 2.3's in it right now, I'm available to pull and sell/ship them if wanted.

professor · #8 06-07-2009, 09:38 PM

Quote:

Originally Posted by pawoSD

However, did you physically remove it and check for wear/dead spots on the surface? That thing can cause a lot of weird issues when worn....

I vote for that, or a malfunctioning EZL unit (on the fender)....as was mentioned earlier, it would be a cheap and easy swap with a junk yard one. In fact, the yard by me has two 190e 2.3's in it right now, I'm available to pull and sell/ship them if wanted.

I did open the spare one to check the rheostat path and it looked like normal wear. Not perfect but no spotting.