Honda Engine Misfire.

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Norman2CV
Forum User
Posts: 16
Joined: Fri Feb 17, 2023 12:41 pm
Location: Cornwall

Honda Engine Misfire.

Post by Norman2CV »

Some advice needed please. Curiosity has got the better of me and I have started investigating the misfire on my 216 .
It starts instantly from cold but is lumpy in the low rev range but clears higher up until it warms then it gets worse and eventually stalls and can be hard to re start, with the odd 'cough', until it goes cold then starts instantly again.
On my older classics i would say ignition fault, coil or condenser, but this is where I am confused.
Research online tells me this car has a thing called an ignitor and or a coil. Could someone please tell me what and where this is, and does it have a coil too ? Do the symptoms indicate that these or this could be a problem and where else should i investigate ?
I appreciate any advice as id love to get the engine running smooth and sweet :)
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GTiJohn
Club Chairman
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Joined: Mon Aug 16, 2010 7:01 pm
Location: Midlands

Re: Honda Engine Misfire.

Post by GTiJohn »

Both the coil (black part on right, below) and the ignitor (thin silver part on left) are inside the coil and can cause these problems

Image

But so can the fuel pump relay inside the car

Image

The soldered joints on the back of the PCB dry out over time but the good news is that they're fairly easy to re-solder, which fixes it for the next 10~20 years!

It's probably a good idea for any owner with a D-series to keep one of each of these 3 as handy spares, as they'll all fail eventually :cool
I like Twin Cams.... and Single Cams...and now Turbos
Norman2CV
Forum User
Posts: 16
Joined: Fri Feb 17, 2023 12:41 pm
Location: Cornwall

Re: Honda Engine Misfire.

Post by Norman2CV »

That is very useful, i really appreciate your advice, thank you.
richard moss
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Joined: Sat Dec 22, 2007 12:02 am
Location: Al Ain, Abu Dhabi

Re: Honda Engine Misfire.

Post by richard moss »

Don't discount the possibility that the rotor arm is shorting out as it warms up. This is surprisingly common and particularly affected black rotor arms produced 15-20 years ago. Cheap and easy to swap
Out in the desert with an old Jeep and a Volvo.
Back home: wife's 1993 216 DOHC Cabriolet, daughter's 2002 R25 and my 1969 MGC GT
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