Re: 2.5L Runs rough when cold
ok, getting input now, thankyou.
Yes this is for the 88 YJ. It is TBI, not MPI like the 4.0's. There is no check engine soon light so the self check idea won't work here.
The problem has been weird, used to be when I got down to a 1/4 tank or less it ran terrible, almost like I was running out of gas. I would fill it up and it would still run bad for about the next entire tank. I replaced the fuel filter, external and in the tank. I replaced the fuel pump, put it all together and now this runs rough when cold deal. Runs quite like it did before at the 1/4 tank thing, only now it's when it's cold. Cold engine keep in mind, not necessarily cold weather.
Other things I have done, new wires, rotor, cap. Ran some (silver bottle, good stuff) STP, fuel injector cleaner through it.
I will check the plugs.
I will look at cleaning the tbi today.
I will also look to see if it has EGR, I haven't noticed.