Have a missfire ??? Check your ECU multiplug terminals...

Have a missfire ??? Check your ECU multiplug terminals...

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maston

Original Poster:

872 posts

153 months

Tuesday 21st July 2015
quotequote all
Well I'm pleased to say that so far (hope I'm not tempting fate) my miss fire seems to be cured.

As I thought, the gap between the pin terminals in the ecu multiplug housing were far too wide and thus they were not gripping the ecu terminals properly causing a random missfire.

So I bought a new multiplug, spliced the old one off and rewired the new one on.

Only slight hiccup was getting terminal 26 mixed up with 28 (I need new glasses) but once corrected it runs lovely.

What I have noticed is that it idles really smoothly now as well as running smoothly throughout the whole rev range.

So I have to thank smash as some time ago he told me that he had a conversation with an expert and a lot of missfires are attributed to either the multiplug or a wiring fault in the loom in some shape or form and not necessarily the ecu itself.

Fingers crossed.............

maston

Original Poster:

872 posts

153 months

Tuesday 21st July 2015
quotequote all
The Hatter said:
Good to hear that - well done Ian!
Thanks Martin,
And thank you and Ron for your help too

Cheers

Ian

maston

Original Poster:

872 posts

153 months

Wednesday 22nd July 2015
quotequote all
Rockettvr said:
Glad you got it sorted - hopefully that will be the end of your running issues. How did the soldering go ?
It went ok ish, quite fiddly though especially with my gas soldering iron I used (nearly blew the wedge up !!!)
You'll have to give me some tips mate.........