forum.1600i.de

Hi Everyone

First post from a new member. I am the happy owner of an 2004 Ultima Edicion. I have just replaced the gearbox with a freeway flyer and while I was at it I replaced the rusty old exhaust with an RVS CSP python. There is no Catalytic Converter so I placed the lambda plug in the exhaust where all 4 pipes merge into one. Everything is worked fine for the first 20kms then the engine just cuts out. If I try to restart it the engine turns over on the starter motor but it won't fire up. If I leave it alone for 10 minutes it starts properly and I can drive again until it stops again.

The car has always driven perfectly before I made these "improvements" does anyone have any ideas what the problem could be.

Any help and advice gratefully received

Tim
Amsterdam

The lambda plug may overheat, use a distance part for it. It can cause a short cut insede the lambda plug.

Maybe the ground connector of the lambda plug to the metall cooling M6 stud is broken. Then the controller has no 0V on ground.

Hello Tim,
it could be a problem of the lambdaprobe.

But it also sounds very similar to this probelm:
http://1600i.de/forum-archiv/topic,754,-major-loss-of-power.htm
It's enough if you read the description of the problem and then go to end (bottom of page 3)and read the solution.

regards
Manfred

Dear Red1600i and Manfred

Thank you very much for your suggestions. I have read the entire thread from Marty and I really hope this doesn't turn into such a long winded problem.

Its been a terrible weekend. Having read the first suggestion I checked the lambda sensor location and earth points. All looks fine. I went for a drive and all seemed fine, I drove in town for about twenty minutes. feeling confident I joined the motorway and bang, no power. Roadside assistance had to tow me home. This morning I took every electric connector apart and again I could drive fine around town. I covered about 30kms without problem, joined the motorway and once again it stopped. I had to come up with some fancy story to get Roadside Assistance to help me. They were not impressed

Anyway, the second time I was taken to the ANWB service center. Luckily they love the car and it seemed to spark a lot of interest from the ANWB men who had a kever years ago.

Getting back to Marti's story, I think we have identified that I may also have a fuel problem. Since I bought the car I am on my third petrol pump. On delivery the garage saw the pump was leaking. they replaced it with one of the replacement pumps on this site. A week later I went back to the garage complaining of a strong petrol smell. Upon inspection it seems this new pump was actually leaking out of the electric connectors. This was once again replaced, and 3 weeks later I noticed the underside of the chassis was wet. (I don't notice the petrol smell anymore its normal to me). I am now waiting for the garage to send me a third replacement pump.

However, the wet patch is now less. A leaking pump is unlikely to stop leaking, so maybe the pump has lost pressure. In testing everything possible the ANWB man said he could hear the petrol pump pumping but the injectors were not 'clicking' or pumping fuel. Apparently if the fuel is not delivered at the right pressure the injectors don't have enough resistance to push against.

Three apparently reliable petrol pumps seems excessive. I am using one pump per 1000 km's. I have read the info section and it might be relevant that my Ultima Edicion is retro fitted onto a 1971 chassis. This means a secondary return fuel line has been routed back to the pump. I have looked at the return line and it is not 7mm, in fact it looks like a 4mm fuel line. Could it be possible that my fuel pump destruction is caused by a serious imbalance of fuel pressure in the out and return fuel lines.

Later this week I will replace the fuel pump and investigate routing new fuel lines. I'll let you know how I get on.

Tim

Retrofitted? Which modell year is the 1600i? 1971 or something arond 1995?

Yes, a 4mm fuel line will not work! It will overload the pump.

It's a 2004 'ultima' fitted to a 1971 floor pan.
A modern car, but officially an old timer...which is why I don't have to keep the Catalytic converter.
Tim