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General Car bucks going into boost

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Joshrojas98

Probationary Member
5
1
Jul 28, 2022
Omaha, Nebraska
For some reason my 6 bolt is bucking when I’m getting into boost and during pulls but not getting knock code..
6 bolt 1220CC injectors Garrett T28 turbo
Problem seems to be somewhat inconsistent.. is it a tune spark plugs ? Fuel ? Help
 
If this issue has not been corrected, try out a different PTU. I have a 90 and tried a second PTU and rewired everything FAIL. Changed my battery, and upgraded my alternator FAIL. Wired in the prius coils and it fixed my issue!
 
For some reason my 6 bolt is bucking when I’m getting into boost and during pulls but not getting knock code..
6 bolt 1220CC injectors Garrett T28 turbo
Problem seems to be somewhat inconsistent.. is it a tune spark plugs ? Fuel ?

With what you got going on id inspect each plug wire especially for any tears or rips. Then id check the plugs see if they look healthy. Ive never really had to change gap or even check it even though that can't hurt. My plugs are always in great shape (good color no debris carbon build up burning etc.) If its your power trasistor unit or coils I'd suspect it to constantly misfire or not start at all.
 
Boost leak test
New plugs/wires
Compression test

Mine did kind of the same thing but more on the top end. I had crummy compression and it went away after a bottom-end rebuild.
 
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