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Old 02-12-2019, 01:01 PM
phil errett phil errett is offline
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Join Date: May 2007
Location: Ontario
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Default Engine bogs at WOT

My 84 GN is in a shop and the owner is searching for a Snap On red brick so he can pull diagnostics, so I though I would try with you guys again.

I have searched the board and cannot find another reference to engine bogging down at WOT. My engine runs fine as long as I do not go WOT. I can ease up to 80-85 mph nice and smooth, but if I try WOT at any time, the engine bogs and actually seems to slow down. When I ease up on the pedal it goes back to normal.

I have changed the O2 sensor and changed the MAF. Smoke test found one vacuum leak - fixed that - Problem persists.

Has anyone ever had this problem and what did the problem turn out to be?
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