I just had the '95 in for a bad glow plug stubborn R and R and the tech said my wiring harness is crumbling. I thought to myself that I don't think this car has electronic injection system - does it?

In which case if I am right then the wiring harness he is talking about must be the glow plug wiring harness system that is crumbling?

I looked up wiring harness in Pelican parts and the only one listed is the glow plug harness.

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dtf
1994 E320 Wagon (Died @ 308,669 miles)
1995 E300 Diesel (228,000)
1999 E300 Turbodiesel ( died @ 255,000)
2006 Toyota Tundra SR5 AC 4X4 (115,000 miles) rusted frame - sold to chop shop
2011 Audi A4 Avant (165,000 miles) Seized engine - donated to Salvation Army
BMW 330 xi 6 speed manual (175,034 miles)
2014 E350 4Matic Wagon 128,000 miles
2018 Dodge Ram 21,000 miles

Yes, gp wiring harness.

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Jim

there are other items on the harness though.

mostly sensors for temp, egr / res flaps, emissions etc..

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The engine harness includes the GP wiring, plus lots of other stuff. Not a bad job for DIY, just takes some time and you need to remove the intake manifold. I cut off all the old harness connectors and kept them as spares, handy for repairs and making up test circuits.

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Respectfully,
/s/
M. Dillon
'87 124.193 (300TD) "White Whale", ~392k miles, 3.5l IP fitted
'95 124.131 (E300) "Sapphire", 380k miles
'73 Balboa 20 "Sanctification"
Charleston SC