Question about 1990 Mercedes-Benz E-Class

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Do have the ability to check fuel pressure from the pump? You can also check for spark at the wires. 1. check for spark(if you have spark, great. It wont be a cps or ignition module) 2. Check for fuel by cracking one of the lines coming from the CIS(fuel distributor)to the fuel injector( should be a 12mm wrench). If no fuel is seen while cranking, check for fuel at one of the side lines(17mm wrench) and have someone turn the key on(please be careful, if it is working, it will spray fuel at you. Use a rag to prevent it.). If no fuel is seen, go under the vehicle, passenger side and just in front of the rear wheel area, you should see a black cover. Remove the cover(10mm nuts and bolts) and while someone cranks the vehicle, tap the fuel pump. It should come on. If it fails to, replace the unit to include a new fuel filter. Please feel free to contact me if you need anything else. This should be a 124 body if anybody asks. You will find the body number in the first 3 digits of the vin on the driver's side windshield area by the "A" pillar. W124.......

Posted on Sep 04, 2010


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