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It has presure to the rail put not return to fuel cell the the regulater is stuck closed. So if it cant return the fuel to the fuel cell the injectors r dumpping as much fuel they can all the time. Tonight i am going to put a new regulater on and see if that works.

so i changed the ecm tonight did not change so got thinking a little bit more about it and it smells like its is super rich, so we took off the fuel return line and no fuel is coming out when u prime it. So then we started and still no fuel so i think the fuel regulatoris bad?? any ideas

its a xj

the sammy At the top on 5 mile the 4 runner the Comanche the cherokee And i live in provo

it has the 4.0 165k i have not checked timing So at ideal it runs a little rough, when i drive with it under 1/4 throttle its fine anything more than that runs like crap. i will check all the grounds tonight and make sure they are good also thanks for the help. Not to sound dumb but how...

Here is the back story. Got the jeep a couple weeks ran and drove great, did a tune up on it drove it drove it to get a new window shield in it did that drove it home and still ran great, was getting a little warm on the way home around 230 so i put a 160 t stat in it and changed the coolent and...

So i have been coming to rmes web site for over a year and going to the old school rock crawl for the last 3 events. I wanted to become part of the community. Heres a little about me, I have had a couple off road rigs the first one i bought was a 1989 Suzuki Sammy,it was really built gears...