Help reading plugs.
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Junior Member
Joined: Jun 2002
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Help reading plugs.
I have about 4500 mi on my new 383 w/MPFI in my '90 Jimmy. I recently pulled several plugs just to check them. They look like they just came out of the box w/only a hint of tan on the porcelin.
Is this okay, or is it running lean?
Is this okay, or is it running lean?
Member
Joined: Sep 2002
Posts: 171
Likes: 0
From: montreal, QC Canada
Car: Malibu 80, T/A 87, S-15 87
Engine: 267 Bu, 305 T/A, 350 S-15
Transmission: Auto Bu, 5spd T/A, Auto S-15
Tan is good
Check
https://www.thirdgen.org/techbb2/sho...hreadid=135045
The picture is not very clear but Tan is the normal one.
https://www.thirdgen.org/techbb2/sho...hreadid=135045
The picture is not very clear but Tan is the normal one.
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