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« on: 13 January 2013, 12:40:39 »
Hi there! How's it going, peeps?
I have a question for you technically inclined people who can contribute to my quest of finding out what could be wrong with my, unfortunately used and abused 1994 (Opel) Omega 2 Litre 16 valve manual transmission. It doesn't have a service history because it has been owned by several young drivers who drove the life out of it but the engine seems to run fine, of course when it manages to run. It has 214 000 kilometers on the clock.
So, after acquiring above mentioned car I started to dig into the problem this car has. The first of all and most obvious is a heavy withdrawal of the vehicle while driving, like someone is feeding a car with a bottle of petrol. You know, put some gas in it and when a car starts dying put some more and so forth OR step on the gas pedal and then release it, step on the gas pedal and then release it... All this happens while I constantly keep my foot on the gas pedal and in gear. Few days ago, fuel pump along with the fuel filter have been replaced but the problem still persists. Of course, there is fuel in the tank but I noticed it builds up pressure when the filler cap is removed.
After asking certain smart people on this forum about the step motor I have found out that the car won't idle due to the failure of the solenoid on the idle control valve. It was sooo rusty so it is no wonder a car wouldn't idle. While unplugged the car idles just above 1000 rpm so I need new idle control valve. Oh well, at least I cleaned the throttle body along with the breather pipes and tiny jet on the bottom of the TB thinking that might solve one problem.
Backfire! Yes, I almost forgot to mention that when a car starts dying and then comes back to life, the whole process is followed by pretty loud backfire and shaking of the car.
I am on my way to do a paperclip test but before that I just feel obligated to help those who are trying to help me by saying what I did check on the car. There is no oil in the spark plug holes (altho there are indicators that there used to be oil), spark plugs are new, mass air flow sensor has been carefully cleaned and air filter has been replaced.
Yeah, temperature gauge doesn't work so I did a little snooping with a mirror and a flashlight on the back of the engine and found out that there is a roung connector on top of the EGR valve, with a 3 tiny holes on it that just hangs around freely. I thought it should be plugged in somewhere but I couldn't find an appropriate place to plug it in...
Any thoughts?
thanks in advance
