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Old 07-27-2005, 04:11 AM   #1 (permalink)
earthwonder
BenzWorld Junior Member
 
Date registered: Jul 2005
Vehicle: 1997 E420
Location: Twin Cities, MN
Posts: 10
Installation of a CPS sensor. With pictures!

I got the CPS sensor from www.alloemautoparts.com for about $45.00(aka reference sensor / crankshaft posititon sensor / heard of it called a camshaft sensor too). It is a little cheaper on the 97' vs 00'. I don't know why. Let me say first that this fix immediately fixed the cold cranking problem. I can't express in words how happy I am. Anyways, I'll explain where the CPS sensor is. Imagine your standing on the the driver side fender looking down. You are also standing parallel to the driver side front tire. Locate the black plastic cover over the entire engine, at the right end of the plastic engine cover will be the sensor dug deep down. Also, the sensor is located between the engine and the firewall. You will have to remove the engine cover to get to the sensor unless you have extrememly small hands. There is a single torx nut holding it down. There is also a single wire/cable which connects to the sensor, just pull on it vertically to remove it. I wasn't able to remove the nut with my rachet set even though I had the right torx lug because of the angle of the torx nut made it impossible to get any leverage. I instead used a small allen wrech tool which worked perfectly. It fit right in there and twisted easily. The torx nut was not in there tight at all. Makes me wonder if maybe if it was just loose all along so the original sensor wasn't able to "sense" whats going on. Installation is self explantory. Hope this helps someone. Below are pictures!



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