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Old 10-28-2002, 03:24 PM
92-300ce 92-300ce is offline
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Join Date: Oct 2002
Location: The Netherlands
Posts: 6
Question 92-300 ce won't rev over 4500 rpm

Hi all,
I have a problem with my girlfriends '92 300 CE with 124k km's on the clock,actually,it's a couple of things that are not normal:
-It won't rev more than 4500 rpm,after that it feels like a governor kicks in (engine cut's out,hesitates).
-I have to start it with the trottle pushed in half way,without it fires and dies instantly.
-Bad fuel economy,can't tell exactly the MPG but it's using a lot of gas.

At first I suspected the OVP-relay,replaced it with another from a 500 SEC,but problems stayed.Then I replaced the fuel-pump relay(after I fried it while measuring power on the 2 fuel pumps underneath) for a new one,still the same symptoms.
Also I checked the sparkplugs,they were ok,and the distributor and rotor,ok too.

I asked 2 local Mercedes mechanics what they think that could be the problem,but they don't have a clue,other than to check the above mensioned parts.
Could it be the fuel filter? Or any other suggestions?

Thanks in advance for helping me with this problem.

Greets,
Jan
The Netherlands.
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