Question about 1995 GMC Jimmy

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Truck is hesitating and is either gettin to much or to little fuel what would be the problem? new o2 senors, new map sencors, new fuel filter, new plug & wires, computer was rebooted, full tune up, and injectors are all good. What could be the problem?

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Fuel pressure regular / throttle position sensor,

Posted on Jan 04, 2011

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Hi, i know you said you replace fuel filter and injector are fine but have you put a fuel pressure gauge on to see what the pressure is . Fuel pump can be running but with out enough pressure it will lack power and maybe even skip from lack of fuel. See what your pressure is and compaire with car specs. this will tell you alot. if i can help you any more just re post.
Thanks dodge tec

Posted on Jan 04, 2011

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