Ignition Amplifier .....

[mhardy]

Hello Wedge People,,,,, As some of you know having some problems with my 350i (see my other topics please). In every rpm it's "plopping"holdingback"misfire" or better it runs not smooth.. BUT sometimes it will and runs just perfect!!!can't tell when or why....

As Ian (wedgie)told me to change the ECU on good running car is at the moment not possible because also that 350i is also sick #@$%^&. Will try when good Ian.

Read several thinks about ignition amp that fail intermittenly and stalling the engine. Could this give my problems ??? and can you just screw it off and replace it?? somebodyelse had renewed that ign.amp??

Iám not a prof.mechanic but learning a lot at the moment. even my english would also be better.

Thanks a lot ,

Matthijs
Holland

[wedg1e]

Matthijs:

Yes you can unscrew the amp and replace it (with correct type of course!).

Your English is better than our Dutch...


Ian

[dickymint]

The ignition module (lucas part DAB135)comes in two versions - the original with 2 spade connectors or the current one which has a "special plug" which needs a convertor kit (Lucas part XXB445).
Easy to fit and quite cheap.
My 350 had similar problems to yours and this fixed it.

This info has been taken from Shpubs "Bible" which I reccommend you buy.
www.tvrbooks.co.uk/

>> Edited by dickymint on Tuesday 29th July 18:43

[arcturus]

Don't be too hasty in assuming it is the ignition amplifier. I have had similar symptoms (intermittent cutting out) and I too, at first, assumed it was the amplifier.

However it turned out not to be the amplifier but the 12 volt feed to the ignition coil that was the problem. Occasionally and for no reason it would momentarily drop to about 2V which would cause a stall.

At the moment I have a temporary fix which is a feed straight from the battery to the coil. This has cured the problem completely and I can still drive it whilst I try to find where the problem is. Just remember to disconnect the coil from the battery when you park up at night or else you will wake up to a flat battery next morning!!

Good luck.

Dave

>> Edited by arcturus on Wednesday 30th July 23:16