bogging down when warm

andrewvk

New Member
91. auto. i dont know to much else about it. it ran great with the exception of we thought the thermostat was bad, so i never got to operating temps. always ran super cold. well we swapped out the thermostat, and it was cut out, like it was just the housing. so we thought it was really odd but were like oh well no biggie. put the new one in. and now when it warms up it bogs down like crazy at low rpms. if you ease into the throttle it will rap out no problem. but if you gag on it, it will bog down and run really crappy until it passes lower-mid rpms and raps out. idles fantastic, and has no other issues. i have a video im downloading now and ill post it. ive searched and searched like crazy and.....
what i saw was possibly o2, so we changed it, spark plugs, so we changed them, dist cap, changed it.

anyone have any suggestions???? no codes. we really dont have any direction to go from here.

thanks for any help in advance.
 

andrewvk

New Member
holy crap i cant figure out how to embed a damn video. just click the link.....lol sorry. thanks a bunch guys!
bogging
 
Last edited:

andrewvk

New Member
leaning more towards coolant temp sensor for ecu and timing???
anyone else help confirm?
 


andrewvk

New Member
ok so i replaced the coolant temp sensor and it greatly reduced the bogging, but it still does it.
after i replaced i took a test drive. and took a long hard right turn and the cel came on and the bogging started just like it was. parked and shut off, 5min later started and the cel was gone and bogging was barely there.

still having the issue but its ever so slightly, until i take hard long turns. possibly abs causing this???

still havent done rotor bug and still havent done plug wires, and going to do ign timing, and motor timing.
 
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