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Has problem driving down the road

(1990 Ford Bronco)
in Clinton, OH on March 22, 2010
hi i have a 1990 bronco and i love it. the problem is when i drive it down the road and i get it up past 45mph it starts to cut out. the check engine light starts to flash and the truck starts to jerk like it is not getting gas but, give it alittle more pedal and it takes off.i just changed the tps and check out the egr valve. i also changed the fuel filter and put an additive in the fuel. the codes that it rattles off are 2-tps, 1-egr 1-fuel relay short, and 1-emc problem with the pip. i am stumped. please help! thanks, chad.
Displaying 3 answers & 1 comment
Popular Answer
on March 23, 2010
I have the same year Bronco but with the 5.8 and we had to have the throttle body cleaned to get the performance and mileage back, Maybe look into this
on March 25, 2010
that is not a bad idea. but that is not the problem. thanks.
on July 18, 2010
Anytime there is a short indicated The harness must be inspected. Look at the harness anywere it could rubb or contact a metal surface.
on July 31, 2010
I have the exact same problem on an 1989 Bronco. Changed TPS and cleaned EGR and IAC, replaced pressure regulator too. Jaymz285 suggested a short. I have been thinking the same thing since my gages fluctuate rapidly. Oil pressure gage dances with the turn signal.
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