c20xe miss fire?

[reecegsi]

Don't know if it's been mentioned, but fuel filter??

got one today tryed changing it but its a b****** lol ill give it another try tomorrow thoe

[reecegsi]

With you changing the fuel injector etc, make sure you've pushed the loom right down onto the injectors.

All so, when you changed ICV, did you plug the switch back into the ICV?.

yh i did i pushed down on all of them before starting

yes i pushed until the clip clicked just to make sure

[Vinci]

got one today tryed changing it but its a b****** lol ill give it another try tomorrow thoe

Then while you're at it maybe you can take the return fuel line off and crank the fuel pump for a moment while holding the line above a bucket, just to see if the fuel is pushed through....

Maybe it's the fuel pressure regulator?? See what happens when it's running when you squeeze the return line.... (use two wooden sticks and a pair of pliers, something that can squeeze fairly hard. Or if it is a rubber hose fuel line then bend it and squeeze firmly....

[reecegsi]

Then while you're at it maybe you can take the return fuel line off and crank the fuel pump for a moment while holding the line above a bucket, just to see if the fuel is pushed through....

Maybe it's the fuel pressure regulator?? See what happens when it's running when you squeeze the return line.... (use two wooden sticks and a pair of pliers, something that can squeeze fairly hard. Or if it is a rubber hose fuel line then bend it and squeeze firmly....

i will try what you said vinci but it does start up as said jus somthing making it not rev up properly and cut out etc all thats left to cgange is afm, fuel filter, coil and dizzy cap everything else is cleaned or new

anymore ideas?

[Cav Lad]

Have try'd taking the fuel pump relay off, give it clean and plug it back in?

[Vinci]

Have try'd taking the fuel pump relay off, give it clean and plug it back in?

Doesn't really make sense, it's got no relation to higher revving...

[reecegsi]

Ive tryed at least 3 relays and they all click no difference its not getting pressure because it wont come out rail when pressed how could i solve that?

[Vinci]

Chance is the fuel pressure regulator is screwed and just letting the fuel pass pack in to the return line without any form of pressure build up. Hence the thing I mentioned above to make the pressure build up yourself by squeezing the return line a little... Maybe you should try that with the valve on the rail opened to see if that makes the fuel squirt out there....

Never tried the test above, so no guarantee it's the right method.

For what I understood the system works like a garden hose (fuel feed line), if you hold your thumb (pressure regulator) on the end you can make the water squirt out pretty far out the opening (injector). If you were to punch a hole in the side of the hose (pressure meter valve) and don't hold your thumb on the end of the hose there would probably be no water coming out the side hole, whereas there would be if you build up pressure by holding your thumb on the end....

[reecegsi]

Shall i try that ignition on and squeeze rubber bit of left (as you look straight at engine) petrol hose? Shall i undo the actual housing of the valve on rail? or just get someone to push valve?

Thanks vinci for your help

[reecegsi]

Ive done what you said vinci and it just dribbles out of valve so fpr gone?

[Cav Lad]

Have you not got another fpr to try?. just sold my old fpr and injectors as well.

[reecegsi]

Only a 3.0 one which the car run just lumpy switched to this now it wont bloody start lol always the way

[Cav Lad]

Only a 3.0 one which the car run just lumpy switched to this now it wont bloody start lol always the way

Joys of motoring...

Have you checked the fuel pipe that goes to the fuel rail, maybe that's dodgy?

Are you running XE fuel pump?

Just curious as the EML ever come on? maybe try doing a fault code check see if outs been logged in the ECU?

[reecegsi]

Na its good pipes fine

no not xe one its a 16v one

yh was on when i first done conversion but disconnected ecu overnite and it was fine just runs rough

[P71GEF]

I had a similar problem on my xe corsa, turned out it was a vacuum leak. Maybe worth giving them a check just to be sure

[Vinci]

If it just dribbles from the valve it sounds like there is no pressure build up. So either the feed line is blocked, the FPR is gone or the pump/filter isn't okay....

[reecegsi]

If it just dribbles from the valve it sounds like there is no pressure build up. So either the feed line is blocked, the FPR is gone or the pump/filter isn't okay....

only since i changed fpr it dribbles when 3.0 bar one was on it used to shoot out lol

[Vinci]

I read earlier in the thread nothing was coming out, so when it used to shoot out, did the engine also still run fine? Or were the revving problems also present when it used to shoot out??

[reecegsi]

I read earlier in the thread nothing was coming out, so when it used to shoot out, did the engine also still run fine? Or were the revving problems also present when it used to shoot out??

when it used to shoot out it still had revving problems but started straight away now it wont start no pressure so i couldnt tell you what the difference is but its definately fpr related as it had pressure before now hasnt

[Vinci]

Alright, then at this point get a new regulator and see what happens...