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90rangersuper
Well-Known Member
Rough Idle please help out of ideas
i have a 90 ranger super with a 4.0 auto 4x4 it ran like shit so i changed the plugs and wires, now it runs much better, still has a rough idle, i pulled the plugs on the tps and the iac and it died right away after i pulled those, those should be good. i cleaned the maf which made no difference, the fuel pressure regulator is not leaking any gas, when i induce a vaccum leak the truck runs idle's much better, the cel is not on and the exhaust smells kinda rich but not to bad, today i changed the iac ane tps and checked for vaccume leaks - found none after changing the sensors removing the vaccume line did not change the idle anymore, she still hesitates from stop and smells a little rich, driving down the road she runs like a dream. wondering where i should go with this now any ideas
i have a 90 ranger super with a 4.0 auto 4x4 it ran like shit so i changed the plugs and wires, now it runs much better, still has a rough idle, i pulled the plugs on the tps and the iac and it died right away after i pulled those, those should be good. i cleaned the maf which made no difference, the fuel pressure regulator is not leaking any gas, when i induce a vaccum leak the truck runs idle's much better, the cel is not on and the exhaust smells kinda rich but not to bad, today i changed the iac ane tps and checked for vaccume leaks - found none after changing the sensors removing the vaccume line did not change the idle anymore, she still hesitates from stop and smells a little rich, driving down the road she runs like a dream. wondering where i should go with this now any ideas
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