1991 GT4RC Bucking and hesitating

JDM GT Four, ST185RC and ST205.

1991 GT4RC Bucking and hesitating

Postby 91GT4RCboy » Sat May 21, 2011 2:03 pm

Hey guys, My RC recently started to buck and hesitate horribly while driving, at just around 3000RPM it begins to buck so horribly that I feel like my neck is going to snap. It seems to do this more often then not when its raining or particularly cold out in the mornings. Checked for codes and only found a 54 so I topped up my intercooler and am now back to square one. Any Ideas? Thanks.
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Re: 1991 GT4RC Bucking and hesitating

Postby alltracst185 » Sat May 21, 2011 2:08 pm

Check your plugs, wires and cap and rotor first.
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Re: 1991 GT4RC Bucking and hesitating

Postby jonnyboygt4 » Sat May 21, 2011 2:10 pm

i too have a similar problem...since i installed my fmic...seems to be surging when i accelerate hard...does this make sense?
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Re: 1991 GT4RC Bucking and hesitating

Postby Corey » Sat May 21, 2011 3:40 pm

If ignition checks don't show anything, try checking the AFM. That was my problem.
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Re: 1991 GT4RC Bucking and hesitating

Postby underscore » Sat May 21, 2011 11:21 pm

Check/replace your spark plug/wires, cap, rotor and fuel filter. Also check the AFM.
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