non runner

[teabag]

yesterday saw the f7p powered rt fired up for the first time.
so i checked everything was connected and that there was sufficient fuel, put the key in the ignition and turned.......

a few turns of the engine and then cough splutter cough cough it came to a lumpy life. it ran for about a minute on an extremely lumpy idle then died, so i turned the key again, fired up straight away.....then died as soon as it stated, turned the key again....same and so on and so on

it seems like either a fueling issue or a weak spark. any other ideas


*also the ecu light is still flashing and the fan coming in on inginion live??

[MicKPM]

Sounds like you've got a wiring issue with the lights flashing and fan kicking in straight away. Are you sure you've got the fuel lines hooked up correctly as it sounds like fuel stavation to me.

[Justin..]

ecu light flashing usually means the immobiliser is active. what phase valver is your ecu from?

[davem]

sounds like the ecu is immobilised. Not sure why it ran for a minute the firsttime though.
Fan kicking in is a wiring wrong problem! Or sticky relay poss?
Have you got the switch on the radiator plugged in?
if ecu is immobilised it is possible to get it decoded way to tell is to see if the fuel pump continues to run if it starts then stops when cranking over then its immobilised.

[teabag]

ecu light flashing usually means the immobiliser is active. what phase valver is your ecu from?

the ecu is from an early valver, i check the part number and it says it doesnt have an immobiliser, might just send it for decoding to check though.

fuel flows through the feed line, but nothing seems to flow out of the return line, checked the rail for blockages and there wasnt any, only bit i couldnt check was the pressure reg. could that be blocked and would that make it cut out?

[Wobba]

ECU's with a code ending 105 are ph1, 103 ph2

Should be fine as my ph1 runs a ph2 ECU.

[MicKPM]

[quote="teabag"]

fuel flows through the feed line, but nothing seems to flow out of the return line, checked the rail for blockages and there wasnt any, only bit i couldnt check was the pressure reg. could that be blocked and would that make it cut out?

Do you mean that you've got the fuel flow connected to the rail but nothing coming out of the rails return when you key the ignition? If so, you've got the lines hooked up wrong to the rail.

The pressure reg works by holding fuel at 1.5/3bar (Depending on the engine speed). The valver fuel pump is capable of flowing at around 5bar IIRC so anything over the regs governing pressure is returned to the tank via the rail. You're saying you've got nothing coming out so you're most likely trying to flow the fuel thru the reg the wrong way and as it's essentially a non-return valve you're getting no fuel thru hence the spluttering.

Mick

[Lunner]

Feed should be going to the o/s of the rail, and return from the n/s of the rail

[AmDaMan]

If that's the problem then LOL!

His current setup is:

Feed, connected to the left inlet (nearest the cam cover)
Return, right inlet battery side.

[teabag]

If that's the problem then LOL!

His current setup is:

Feed, connected to the left inlet (nearest the cam cover)
Return, right inlet battery side.

ill swap them round tomorrow then