Longer post...sorry,
88 renix 4.0 ba10 manual trans basically stock engine minus 4 hole injectors. 2" lift with 30" tires. Nothing crazy or heavy like bumpers or axles.
So I've read a ton of posts about these renix problems. My problem is I've replaced or checked everything I can think of and I'm still burning through gas and have to downshift up every hill even tiny ones and I have a really hard time getting up to 65 mph.
I have replaced every relay and checked every sensor based on lunghd website. I have done all of cruisers tips. New cps, plugs, wires, swapped injectors, o2 sensor, iac, tps. When I got the jeep a few years ago it ran really rough and sucked down gas but it would hit 80 mph easy and had tons of power. Recently the power has been lacking but mpgs were destroyed and it was running crazy rich based on about 8 different cracks and holes in the exhaust manifold. So a few days ago a shop fixed the holes and replaced the head pipe o2 sensor and cat. I ran it for a while and then readjusted the tps to a good idle. Fixed the rich smell out the exhaust but it's still really lacking power and still sucking down gas.
Help!
88 renix 4.0 ba10 manual trans basically stock engine minus 4 hole injectors. 2" lift with 30" tires. Nothing crazy or heavy like bumpers or axles.
So I've read a ton of posts about these renix problems. My problem is I've replaced or checked everything I can think of and I'm still burning through gas and have to downshift up every hill even tiny ones and I have a really hard time getting up to 65 mph.
I have replaced every relay and checked every sensor based on lunghd website. I have done all of cruisers tips. New cps, plugs, wires, swapped injectors, o2 sensor, iac, tps. When I got the jeep a few years ago it ran really rough and sucked down gas but it would hit 80 mph easy and had tons of power. Recently the power has been lacking but mpgs were destroyed and it was running crazy rich based on about 8 different cracks and holes in the exhaust manifold. So a few days ago a shop fixed the holes and replaced the head pipe o2 sensor and cat. I ran it for a while and then readjusted the tps to a good idle. Fixed the rich smell out the exhaust but it's still really lacking power and still sucking down gas.
Help!