New plugs, bad MPG
#1
Senior Member
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Thread Starter
New plugs, bad MPG
Hi all,
I replaced my plugs a couple of weeks ago, I was getting around 25 MPG, and the new ones are giving me 18.
I don't race so what'* up? They're Delco copper plugs... gapped to .060
Thanks
1992, bonny SE
I replaced my plugs a couple of weeks ago, I was getting around 25 MPG, and the new ones are giving me 18.
I don't race so what'* up? They're Delco copper plugs... gapped to .060
Thanks
1992, bonny SE
#2
Senior Member
True Car Nut
Did you properly seat all the wires? Is there a chance a wire was damaged when you pulled it off? Is your car hesitating on acceleration? Is the CEL lit? Is it flashing?
Inspect the area to see if you disconnected or broke anything when you changed the plugs. Look for any disconnected or damage vacuum lines.
Inspect the area to see if you disconnected or broke anything when you changed the plugs. Look for any disconnected or damage vacuum lines.
#3
Senior Member
Posts like a Supercharger
Thread Starter
Yes, everything was seated correctly. I'll pull the wires and run a resistance test through them. No CEL light or flashing.
I'll check the vac lines as well.
Thanks!
I'll check the vac lines as well.
Thanks!
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BonnieBrougham
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12-16-2004 05:38 PM