The Mitsubishi Pajero Owners Club®

[iam_TJ]

Plastic Padding's "Super Steel" two-part epoxy came to the rescue today, curing a Cylinder 1 misfire that had been intermittent for a week or so.

Check engine and fault codes would sometimes not be triggered but at idle the engine was jumping about like a horse with fleas due to the misfire!

Today I removed the throttle body to get to the plugs expecting something serious. On removing the coil pack, which has a long thin stem that plugs onto the spark plug, there was a very obvious pin-hole in the insulation at the bottom end of the stem where it flares out to enclose the spark plug head. The misfire was caused by the current arcing through that  pin-hole and across the air gap to the engine body (ground).

I used a pea-sized portion of Super Steel epoxy to flow and surround the pin-hole and after it had set (about 5 minutes) re-assembled the engine.

Been out on a couple of trips today and it has been perfectly behaved; this may not be a permanent fix but it certainly is a quick stop-gap whilst I source a replacement coil pack.

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[iam_TJ]

Had another fault occur recently this time on cylinder 3. Same issue - the 'leg' or stem had a pin-hole burned through. I made the same temporary repair as last time.

However, this time I discovered the leg can be replaced without replacing the coil pack as well - the leg pulls out of the coil pack. The replacement is part number 1832A019 that I got as FEBEST MCP-005 for £20.