How bad is stale fuel?

[07cob]

Cameron

As Merv mentioned, I also had a similar issue in getting my engine started.

When you switch the ignition on, can you hear the fuel pump run (even if just for a couple of seconds)? This was a tell-tale for mine. I had missed an earth connection and the ECU would not fire up the pump. Missing earths can cause no end of difficulty identifying problems.

Do you have easy access to the ECU? If so, it would be good to disconnect the big plug and check pins 20, 40, 60 and 49 for earth connections.

Cheers

Geof

[Bernica]

This is 100 octane fuel. the one on the left is fresh. The one on the right is 11 months old....

[cameron02]

Well I put it all back together and of course I tried to start it (just in case the elves had fixed it over night) but no luck. I found a couple of earths in the engine bay and removed sanded back and reinstalled still no luck. I will keep looking.

Geof 07Cob.......Thanks I will check those pins.....hang on a sec....how do I check/test them, or am I just making sure the connectors are there?
Yep the fuel pump is pumping fuel although if the pressure isnt high enough it could be a problem, I'm not able to check that at present.

Merv...........I think I might take you up on that offer of photo's. I'm gunna need all the help I can get

[Aussie Mike]

[07cob]

Originally Posted by cameron02

.....hang on a sec....how do I check/test them, or am I just making sure the connectors are there?

Cameron

Similar to the way you used your light meter to check the injectors. Connect one end of the light meter to the positive side of the battery (maybe with a cable extension) and the other to the pins in the connector (not the ECU!) - numbers 20, 40, 60 and 49. If these connections are earthed, then the test light will glow. If not, you will need to trace the wire (physically) and find where the earth connetction is missing.

A multimeter would be a little easier but if you don't have one this should work just as well.

Cheers

Geof