Revmeter again.

pdtaylor18 · April 11, 2009, 09:44:07 PM

If I remember right from my piston days that some of the older cars the distributor did send the rev signal, you may have more than one fault here by the way. Tell you what I will send you the distributor,try it you have nothing to lose. If it works then my treat but if its no change then just give it back at RS or another event. I will dig out any other S4 stuff I have but most was for a TII so not even sure if it will be compatable.
The distributor I have is definately an EGI S4 item.

dthebuk · April 11, 2009, 10:04:09 PM

ah nice one. So was it the american S4\'s that have the different ignition set up? or is just the later s4 cars that have it?
Judging by the way the rev counter is moving id guess its a problem with the rev counter its self. Its like a bad speedo that isn\'t stead but slightly worse, if that makes sense? With the earlier problem the needle always seemed rigid.

Thanks once again pete!!

pdtaylor18 · April 11, 2009, 10:22:31 PM

Think some of the Australian ones were like the TII setups in coils and CAS, not sure on the USA market but most seem to be like the TII\'s. Been trying to have a read and most non rotary sites say the rev comes off the coils which I know is correct in the majority of cars but I am sure I read somewhere that a Distibutor can as well. If we can be sure of a S4 rev gauge and S5 being compatible I could send just that part as well. All mine are S5 and I know are not but/however the rev gauge just might be by itself. It might even be worth asking if someone has a S4 ECU you can borrow or buy cheaply, they can break over time.

dthebuk · April 13, 2009, 01:45:45 PM

well I had the as out again last night and the problem seems to have changed, the car sparks but will not run. It\'s runs on east start fine so the aa man thought the car was running to lean. It\'s still having problems with the rev counter though. So the man seems to think the problems with the fuel pump or a main relay or the ecu. He also mentioned worn rotor tips. Meh I\'m getting to the point where I might just take it to a garage, but I\'m begging the the think the garage broke it in the first place!

pdtaylor18 · April 13, 2009, 07:09:16 PM

Shall i send a fuel pump as well? I have a working one you can chuck in. Dont go to the garage just yet for silly things that will cost a fortune to get sorted.
Any items you dont need just give em back at a later stage.
The only thing i dont have is an ECU.

pdtaylor18 · April 13, 2009, 07:57:27 PM

right been having a good rummage,got a fuel pump but the main relay I have is for a S5 and although it would work the connectors are different. I can still send this and you can splice and do what you want with it. Usually though this relay either works or it dont. You should hear a click from it as you turn on the ignition. I think at this stage its looking at pump or ECU. You will have to go down that route before you suspect the engine. Also if it were tips then it would not be intermittent as it is now so i doubt it is.
The rev counter could be just that...... the rev counter and nothing more and could be unrelated but we\'ll sort that one out when the car is running 100%.

dthebuk · April 13, 2009, 08:58:03 PM

ah nice one pete, if you could send the fuel pump that\'d be great. Ill be more than happy to cover postage for anything and if you send us a part that fixes the car ill be more than happy to pay you for it

Hmm the car does click, but thats most likely the starter solenoid right? Ill need someone to listen to check if its the relay. Glad thats its not likely to be the engine

The only thing with the rev counter is that the problems occur when the problems with the rev counter occur, so hmm. Thats why id pretty much ruled out the fuel pump. To be honest ill try anything atm, and if you\'re willing to send me parts i have no reason not to!

pdtaylor18 · April 13, 2009, 09:40:23 PM

I\'d say ECU then at this stage.
I will get the box out tomorrow for you,theres a few other S4 bits in there but no good to me. I have not sent the whole distibuter but the little black boxes of them as thats the common thing to go,also they are plug and play and no need to set the dizzy up if i sent the whole thing.
The pump is a TII one but will fit and give you a bit more fuelling than a EGI one but they might be the same being as they share virtually the same injection system. I\'ve sent some inline crimps as well, these can be used on your fuel pump as well if you have to.

If the car starts then its not the relay,however you need to make sure its not getting lazy and switching off but i think with everything you have said and some of the diagnostics you have done already then it may well be the ECU. Did you swop the coils?

dthebuk · April 13, 2009, 10:54:33 PM

ok sounds good, though the ecu is probably the one thing i don\'t want it to be as im guessing it will be an absolute mission for me to find a replacement. Once again thanks for the help, the problem doesn\'t seem so bad now!

Yes i did swap the coils. After i swapped them i did over 100 miles without it breaking down on me, though the car had been standing for about 2 weeks, which seems to help.

grinder · April 14, 2009, 10:15:22 AM

the ecu should be a dodle to find a second hand one - just look for someone breaking an EGI on ebay - and it shouldnt cost you a lot

i spend about 10 weeks trying to start my car to find it was the ECU was shot

dthebuk · April 24, 2009, 12:53:25 PM

just waiting on the ecu at the moment, so i thought id check the fuel pump anyway ust to see if that is the problem. I put my hand on it the see if i could feel anything whilst someone turned the engine over and i couldn\'t feel a thing. Is that a sign of it doing nothing? Also i was planning on taking off one of the fuel lines and having somone crank the engine so i could see if it was actually pumping anything. Is this a good plan?

thaaanks

pdtaylor18 · April 24, 2009, 01:25:01 PM

You can do that at the engine side if you want but have a container to catch the fuel in. Dont forget that just because you have fuel it does not mean its pumping at the right pressure but i suppose you will soon know if it only dribbles out.
The pump should at least prime when you turn the ignition on or if you find your green test connector ,if you jump this then the pump runs all the time(for test only).

Archbish · April 24, 2009, 01:50:09 PM

It has sounded like the CAS might well be playing up. The T2 engine I bought for the S4 had similar symptoms to yours (would drive along OK, but sometimes cut out). During the work, I noticed the wires from the CAS had perished, and the insulation had flexed away - which meant it could short quite easily. This could certainly cause the issue by not telling the ECU when to fire the sparks at all, or erroneously...

dthebuk · April 24, 2009, 02:25:18 PM

ah another new idea. Awesome arch. Whats the CAS? never heard of it.

And pete, surely i should be able to at least feel the pump vibrating a bit? i litrally couldn;t feel a thing. I\'ll give it a try engine side . thanks again team

Archbish · April 24, 2009, 02:40:51 PM

This is where it is. 4 wires come out of it, and on mine, two were stripped and their shorting may well have been the problem.