Hi everyone, These days i am trying to restart a 328 that has not been running since 9 years. The car is in very good condition, dry conserved. What has been done since (in the order): - fuel tank bleeded and new fuel in it - it appeared that the fuel pomp was not running so we replaced it - wrong connexion of the fuel pomp to the accumulator (we switch the two hoses by error) . that caused damage to the accululator but we replaced it. -new fuel filter - car started difficultly after lot of cranking. Exhausts were smocking a lot , we firstly thought it was normal due to long time without running but continued white smocking... - car really difficult to start cold, lots of cranking needed and impossible once hot. Engine does not maintain idle. -CIS checked: OK, not spraying when not crancking - after checking spark plugs, plug covers did not stop poping out of the engine one after one while cranking. Supposed there was too much pressure in cylinders , I'm fact they where full of fuel - changed spark plugs : new NGK Iridium -find out that there was a bit of diesel in the fuel we put in the tank, replaced it by new good fuel (98). - not running anymore, lots of fuel going out from the exhaust (by a little rust hole) - checked the KJET under the air filter: the plate was not moving downward freely, only 5-10 millimeters! Moved it a little bit with my fingers and deblocked it, it has a good movement now. - still won't start, removed spark plugs and crancked the engine : lots of fuel going out the cylinders, even when cranking a lot without spark plugs. What I suspect: - Kjet blocked in open position: always delivering high fuel quantity to injectors - cam sensor problem? - Kjet warming module problem -...? Thank you in advance for your further help. PS: sorry for my English, I am from Belgium ;-)
If the cylinders were really full of fuel the first thing to do is check the oil level. If its high it means fuel has got into the oil via the sump. You will need to drain the oil and refill and change the oil filter before continuing to diagnose the problem. A sump full of fuel is not a good situation. Did you get a situation where the starter suddenly stalled when cranking? If so, thats a cylinder full of fuel. When you tested to check no fuel was being injected when not cranking, did you have the fuel pump running by unplugging the connector on the CIS unit to override the fuel pump relay? If you suspect masses of fuel being injected incorrectly, try this and check the injectors including the cold start injector, with the fuel pump running and the engine not turning.
Thanks for your answer. I did not think about the oil level, that is a very good point I am going to check firstly tomorrow . I had no situation where the starter stalled when cranking. I did not unplug this connector. what is the CIS unit? the K-Jetronic? thanks for your help
Once you determine the problem I highly recommend putting some sea foam in the gas tank. This stuff does wonders with regards to the fuel system. It is almost like using windex like in my big fat greek wedding.
The KJET is beeing disasembled. First problem: this green connector is very corroded. That might explain a part of the problem.
Furhtermore the central parts was blocked in the fully opened position. That might explain the bad feeling I had with the central plate.
Hi everyone, Problems, again Now the problem is that, if I turn the key on the first position I don't hear the fuel pump like before. If I start the car, it will run for a few seconds then stop, even if I put my foot down... If I turn the key in first position, and I push manually on the air intake plate of the K-Jetronic module, then the fuel pump starts. I have already tried switching relays but result is the same. I have also seen a big post on that topic on another forum, explaining that I should hear the pump on first key's position but other comments beneath saying the contrary. Any idea?
That's how it is supposed to work. That's what the blue connector on the side of the K-Jet module is for - it sends a signal to the fuel pump that the plate is down (engine sucking in air).
Yes indeed. But I was wondering if, eventually, if I turn the key on first position I should hear the pump or not? Because I can read different stories about this.
My suggestion is to go back to basics. Drain your oil, replace with new. Do a compression check and if needed, do a leak down test.If you find problems here, fix it. Check your system fuel pressure, and controlled fuel pressure. If they are not in specs, fix it. Check for spark when you are cranking, and for cold injector functioning. Remove air filter to make sure you have air. If you have all those and still no start, consider new spark plugs, new wires, new caps and rotors. Pull the injectors and have them cleaned. Hell,after these many years, you should replace timing belts and bearing before too much else is done. Then, you can check the timing as well. If the list seems extensive, it is. Bad things happen to cars when they sit for years. Was it running before? Why did it get put away?
how is the fuel in the car now? I noticed you mentioned there was Diesel in the fuel, if it was sitting for so long, there might be sludge/water build-up in the tanks or fuels lines etc, this can cause many problems, I would get the fuel tanks drained completely, check the hoses underneath, ten to one - need to be replaced. the injectors / fuel system might also have problems but should be easy to fix. good luck Johnny
No. The fuelpump should run when you crank the car, the air metering plate is down or the blue connector is disconnected.
