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Old 09-16-2003, 08:09 PM
Chaosmosis Chaosmosis is offline
1973 450SL 117.982 107.04
 
Join Date: Feb 2003
Posts: 53
Here's more info............

I've been working on this problem a while, here is what I did...
I have verified all temp sensors to the ECU and then ohm'd from the ECU harness back to all the sensors and observed them move to spec during warmup, these are most likely functioning, also I have TEED in between the MPS and manifold and put a digital vacuum guage and it bars out to spec (it sure sounds and acts like the air valve but this one is only a couple of months old, the old one was stuck open,tried the balpeen trick,didn't work) This '73 SL actually runs smooth on strart and after about 25 seconds will start hunting for almost 2 minutes and smoothes out, at this point the engine temp is about 30C or so....
Ofcourse if you start it and put it in gear (under load purrs like a kitten......
If you need specifics on any measurements let me know, I took copius notes on troubleshooting the DJET and have a binder about an inch thick....
Thanks for taking the time to help us on this one you guys!!!
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