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NO SPARK - any suggestions please?
Posted: Tue Apr 01, 2025 8:26 am
by fanman
Replaced dizzy although the original is thought to be good
Replaced HT leads
New rotor and dizzy cap
Underbonnet fuses checked (not relays though - not sure how to check
)
Moby bypass checked
Car was running fine, then next time i tried to fire her up a few splutters and the next time - nothing!
Re: NO SPARK - any suggestions please?
Posted: Wed Apr 02, 2025 11:39 am
by Micron
fanman wrote: ↑Tue Apr 01, 2025 8:26 am
Replaced dizzy although the original is thought to be good
Replaced HT leads
New rotor and dizzy cap
Underbonnet fuses checked (not relays though - not sure how to check
)
Moby bypass checked
Car was running fine, then next time i tried to fire her up a few splutters and the next time - nothing!
was the replacement dizzy, a new one?
If it was a new dizzy, why did you replace the rotor and cap?
I would be very surprised if all the HT leads were faulty?
Questions.
Does it turn over ok
Have toy checked the CPS plug (grey plug near the dip stick), pull it apart, give the contacts a clean and try again. failing that, consider a replacement CPS, but my money is on the grey CPS plug
Re: NO SPARK - any suggestions please?
Posted: Wed Apr 02, 2025 12:01 pm
by fanman
Micron wrote: ↑Wed Apr 02, 2025 11:39 am
fanman wrote: ↑Tue Apr 01, 2025 8:26 am
Replaced dizzy although the original is thought to be good
Replaced HT leads
New rotor and dizzy cap
Underbonnet fuses checked (not relays though - not sure how to check
)
Moby bypass checked
Car was running fine, then next time i tried to fire her up a few splutters and the next time - nothing!
was the replacement dizzy, a new one?
If it was a new dizzy, why did you replace the rotor and cap?
I would be very surprised if all the HT leads were faulty?
Questions.
Does it turn over ok
Have toy checked the CPS plug (grey plug near the dip stick), pull it apart, give the contacts a clean and try again. failing that, consider a replacement CPS, but my money is on the grey CPS plug
Sorry - misleading post of mine! New rotor and cap were on new dizzy!
No CPS as its a 16v
Turns over fine
Think I have now traced the fault to a duff PCM relay so posting a 'wanted' ad for one.
Thanks for your help , much appreciated
Re: NO SPARK - any suggestions please?
Posted: Wed Apr 02, 2025 6:31 pm
by jrh
Is there another relay the same as the PCM in another position ?
Re: NO SPARK - any suggestions please?
Posted: Wed Apr 02, 2025 7:06 pm
by fanman
jrh wrote: ↑Wed Apr 02, 2025 6:31 pm
Is there another relay the same as the PCM in another position ?
There is one next to it which is the same shape/size but it is a different colour so presumably there is a difference? I would need to remove it to see if the pins are the same too.