ron6962

I have a 1972 450SL with a recently rebuilt engine, so I'm confident all the ignition, timing, and fuel issues are OK. It runs A-OK at upper RPMs, but at anything under 1500-2000 RPMs, the #4 and #8 fuel injectors fail to activate. My mechanic tells me he "suspects" the ECU since everything else looks OK. He says the only way to know for sure is with a replacement ECU computer. Of course they are near impossible to find, and so far I have not found a good source to try a rebuild. I'm curious if there are any testing procedures that might help me verify the ECU failure? I hate to spend another several hundred dollars on a solution (assuming I can find one) that does not resolve my problem. Any advice appreciated.

ron6962

No responses in a couple of weeks. Guess I will close this post (If I can figure out how) and try another avenue for help.

myway

Try a better forum: http://www.benzworld.org/forums/r-c107-sl-slc-class/

ron6962

Thank you for the reply....my first reply on this forum! By coincidence, I just earlier today posted the same question on the Benzworld.org forum. Thanks again.

myway

I see you already have some responses over there. I figured the D-Jet guys would help.

ron6962

Yes, several replies with several good suggestions to follow-up. Thanks again for your interest in helping me.