Car started fine, reversed out of drive and died.

Checked, (1) Spark = O.K.

(2) Uncoupled fuel filter = Gushed out when ignition turned on.

(3) Checked ECU = reading 55, no faults.

Any other suggestions, HELP.

so it wont start now?

 

Good spark and fuel leaves no compression, snapped cambelt? (thats a really wild stab in the dark btw :p)

Car started fine, reversed out of drive and died.

Checked, (1) Spark = O.K.

(2) Uncoupled fuel filter = Gushed out when ignition turned on.

(3) Checked ECU = reading 55, no faults.

Any other suggestions, HELP.

Either CAS or PTU :)

no and no. A CAS fault will mean no fuel at all, a PTU fault will give no spark.

No apparent smell of fuel from exhaust when cranked.

Could still be fuel because the pump gets full battery volts for a second at start up then the pump controller changes the path to earth. To test it jump wire the pump to the battery so its running all the time and see if it starts. Check you get the correct wires at the pump you don't want to send full battery power down the fuel level gauge sender a spark in the tank may dent the pavement below the car!!!!!

if that was the case though it would start but quickly cut out.

no and no. A CAS fault will mean no fuel at all, a PTU fault will give no spark.

Sorry have to disagree there as i have in the past suffered from a Faulty CAS and the injectors were still recieving fuel.

A faulty CAS can give incorrect timing leading to a non starting engine. A faulty PTU may not give Spark on all Cylinders! :rolleyes: :)

Thanks for the tips,will see how I get on. Cheers.

Sorry have to disagree there as i have in the past suffered from a Faulty CAS and the injectors were still recieving fuel.

A faulty CAS can give incorrect timing leading to a non starting engine. A faulty PTU may not give Spark on all Cylinders! :rolleyes: :)

 

nonsense, disconnect your CAS and see how much fuel comes though. PTU may well be the problem, didn't say how many of the plugs are sparking, that said you will start a zed on only 3 cylinders at a push.

nonsense, disconnect your CAS and see how much fuel comes though. PTU may well be the problem, didn't say how many of the plugs are sparking, that said you will start a zed on only 3 cylinders at a push.

Mate you know nothing then!! You can't tell me its nonsense! just reading your above reply states that.

You can tell someone its nonsence when they speak from experience.

I wonder how much you really know about cars!

Reminds me of some of the apprentices i had to work with years ago :rolleyes: Do you always go round telling mechanics they know nothing??

The Guy has a problem and i have given from *Experience* Two possible Cause's i don't need people like you telling me its nonsense!

Just goes to prove what some of the Members are like on this Forum :headvswal

 

pete-flint Hope you get it sorted mate and you get help from people like me who know there stuff! If i was local i would sort it for you! There are a few mechanics on this forum Like Greg, Ryan ,Jeff TT,Me and a few others! I am sure they would be willing to help if you PM'ed them :)

has the car got an imobilizer on it?could of gone a knacker maybe

does sound like CAS if you ask me.

my dads car had this problem.he had a faulty connection at the cas unit.the ecu didnt detect any errors.the cas signals the ecu to latch the fuel pump relay when the engine is cranked.your car probaly started on the residual fuel pressure in the rail then died when it ran out.remove the fuel supply pipe and put it into a container and get someone too crank the engine.you have to turn the engine over.putting the ignition on wont prime the rail.

Mate you know nothing then!! You can't tell me its nonsense! just reading your above reply states that.

You can tell someone its nonsence when they speak from experience.

I wonder how much you really know about cars!

Reminds me of some of the apprentices i had to work with years ago :rolleyes: Do you always go round telling mechanics they know nothing??

The Guy has a problem and i have given from *Experience* Two possible Cause's i don't need people like you telling me its nonsense!

Just goes to prove what some of the Members are like on this Forum :headvswal

 

pete-flint Hope you get it sorted mate and you get help from people like me who know there stuff! If i was local i would sort it for you! There are a few mechanics on this forum Like Greg, Ryan ,Jeff TT,Me and a few others! I am sure they would be willing to help if you PM'ed them :)

 

:xxx: :xxx: :xxx:

 

believe it or not I do have a certain amount of experience with these.

:xxx: :xxx: :xxx:

 

believe it or not I do have a certain amount of experience with these.

DING DING ROUND 2 LOL :x: :wack: :)

come on ladies this isn't helping pete is it. chill out or take the arguement else where.

I did do a search before I asked the question, but nothing came up. I would have thought someone MUST have had a similar problem at some time, never mind. Didn't want to start WW3.

Will check CAS and number of plugs firing also fuel flow. Regarding fuel, does the regulator (the little diaphram between 5 & 6 cylinders) control the injector fuel rail pressure and is it possible to hear the injectors "ticking" when they operate ?

 

Commence "Round 3", sorry guys, couldn't resist.

you can always test the cas by undoing the 3 bolts on the cas, mark the timing position then pull it out turn ignition on then rotate the end slowly if you can hear the injectors ticking then cas unit is ok. if you have spark in all six cylinders then that eliminates the ptu next thing to check woud be the ecu temp sensor/harness & even the the fuel pump control unit could be faulty ?? so try by passing it

Hi Pete

 

Open your boot take the mats out and you will hear the pump if its running when you crank it over.

quick way to test the cas is to remove it (don't forget to mark it's current position) and manualy rotate the cas axle with the ignition on and listen if you hear the injectors click.

 

and to add to the discussion:

 

The CAS has nothing to do with the fuel pump or fuel distribution.

It's a sensor used for measuring RPM and crank angle/position

This signal is then used by the ECU to determine when to open certain injectors and when to fire a spark.

So in short, a defective CAS can cause the ecu not to operate the injectors or cause ignition problems.

 

-Eric

The CAS has nothing to do with the fuel pump or fuel distribution.

 

In around about way it has. The signals generated from the CAS form the "engine running" signal in the ECU which in turn gives the "fuel pump run" command.

 

If you don't have the CAS signals, the fuel pump will shut off around 1 second later. Hence when you turn the ignition on the ECU gives a short prime signal to the fuel pump controller and then the pump turns off until you crank.

 

This also stops the fuel pump running and feeding a fire when you wrap your car round a tree (provided the engine stalls :) ).

Thanks guys. I've had the plugs out, they're O.K. gap 0.035",cranked engine and fuel flowing into container while cranking O.K. Will remove CAS and listen for injectors ticking once I get circulation back in my hands, friggin' freezin, I think my brain has frozen.

Once again thanks guys, have a Merry Christmas, hopefully Santa will tow the car away and fix it !!!