I thought id treat it to new plugs, as looked old sooty and tired, removed plugs inserted new ones, started it and it ran but there were flicking tick tick noises, like the noise you woul hear on a ht lead that was shorting out but no sparks to be seen or anything so iturned it off, i checked as best i could nothing was out of place or wrong, all seemed ok, so started it again and was running on 3 cylinders, and engine sounded weird, then it dropped to 2 cyls i wiggled the wiring loom that supplies the coils and injectors and it went to 3/4 cyls then dropped to maybe one then chucked it and now wont start at all HELP! ive tried another ptu, no good, mines a series 2 anyway, and its giving code 21, ignition signal circuit?? does this mean the wiring loom is wrecked or is it something else, dont think i disturbed the inj connectors?, at anytime, ive reset ecu, no good what the heck do i do now ??? aaaarghh it ran like a swiss watch before i changed plugs mega quiet and smooth and looks brand new under bonnet nothing outta place and nothing ever visibly faffed on with??

u defo got the correct plugs in there? what one are they?

NGK pfr6b -11c and its no different with old plugs back in either so not that simple im afraid

i would check that all the rubber washers are in place under the balance bar, maybe some kind of air leak, also chack all elec connectors, even if you have checked them, check them again and make sure everything is tight

Hey mate

 

From what you said about wiggling the loom it sounds like it may be that your loom needs looking at. Have you had a good look at each of the coil pack connectors? Try taking a coilpack and a spark plug and try connecting it to each coil pack connector and see if you get a spark when you short it against the plenum with the ignition on.

Edited January 25, 200916 yr by radron

Oh welcome to my world, right more than one issue to deal with there, as it is highly likely you have disturbed the injectors connectors unintentially you will need to disconnect them all and clean and refit them.

 

The code 21 is ignition fault, the series two ptu does have a failing in the connector, look at the connector that has seven cable in it, and check the black one, this is the unit earth and often that particular pin pushes back into the connector and makes a poor connection, it may well of just been waiting to play up and now it has, make sure its a good contact and do the same with the cas unit connection, the connection on this is just as likely to play up when disturbed.

 

Have fun

 

 

Jeff TT

Do i need to remove anything first to get at the injector cons? they look well awkward and the clip looks like its underneath ? jesus what a mare, just checked balance bar and its ok, will be on again with it in the morning cheers jeff i will no doubt be back on the morra, wish you were nearer you could have had the fun LOL

If you back on it tomorrow and get stuck just call the office and will go through it with ya.

 

Jeff TT

Do i need to remove anything first to get at the injector cons? they look well awkward and the clip looks like its underneath ? jesus what a mare, just checked balance bar and its ok, will be on again with it in the morning cheers jeff i will no doubt be back on the morra, wish you were nearer you could have had the fun LOL

 

but did ya check that the little rubber o rings are present very easy for these to drop into the plenum or eleswhere.

Yes the 0 rings are fine, a bit flat but still in position, thanks m8

im in the same boat m8 i have just done the head gaskets on my tt and it looks like someone has been working on it before. all the inj connectors are cracked so are the coil connectors. i cant get my 1 to start either. what a nightmare. let me know if you find anything with yours. might help me.

 

I will mate, i was gonna try and get to it today and have a go to sort it out but i got stuck at work, any luck with yours??

NIce one mate really pleased for you.

Well we got it running again today, turned out to be same as yours mikey!!! injector connectors were furry and green,cleaned up with elec sprayand its sweet as a nut again, bit more poke with new plugs too, tho still feels sluggish, but im over the moon with it running again yyyyyyyyyyyyyyyyyyyeeeeeeeeeeeeeeeeeeehhaaaaaa!! cheers guys