My dad ended up bringing my jeep back to me to sale. Because the spitting and sputtering has gotten worse. It will start around 30-40. Use to I could ease off of the pedal, then ease back on the pedal and it would quit. Know I have to floor it as soon as it starts. Still not sure what's causing it.

 

I'm having a hard time hearing it. 30 second mark is about when the oncoming car whooshes by.

 

When my jeep starts spitting and sputtering. It shakes the whole jeep so bad, it's hard to keep it on the road.

 

I had the same problem with my cherokee, I changed all the sensors you could think of, cleaned the throttle body. You name it and I still had a problem. It was the computer! I have a stick and someone put an automatic computer in it. It runs like a champ now! The computer only cost me $150. I was stoked.

 

U could have a vac line disconnected or something

 

i have an 88 jeep cherokee. and we have changed distrubitor, spark plugs and wires, air filter, fuel filter and fuel pump and also checked all the injectors and it starts and idles but it idles very roughly. it acts like its not getting gas when i push down the accelerator, idk what to do about it either, any advice

 

Possible cps or map sensor for Sure

 

My problem was very simular, after changeing all the sensors & cleaning everything. We realized it was the computer! My jeep is a stick & it had an automatic computer in it. Good Luck Buddy

 

ok so we have now replaced the whole computer, all sensors checked all the vacuums gas lines grounds everything. still no fix any more ideas?

 

Did you ever do this?

Cruiser’s Renix Sensor Ground Test
　
This sensor ground circuit affects the CTS, TPS, IAT, MAP, ECU and diagnostic connector grounds. It’s very important and not something to overlook in diagnosing your Renix Jeep as it is common for the harnesses to have poor crimps causing poor grounds. If any or all of the sensors do not have a good ground, the signal the ECU receives from these sensors is inaccurate.
Set your meter to measure Ohms. Be sure the key is in the OFF position. Using the positive (red) lead of your ohmmeter, probe the B terminal of the flat 3 wire connector of the TPS . The letters are embossed on the connector itself.
Touch the black lead of your meter to the negative battery post. Wiggle the wiring harness where it runs parallel to the valve cover and also near the MAP sensor mounted on the firewall. If you have an 87 or 88 with the C101 connector mounted on the firewall above the brake booster, wiggle it, too.
You want to see as close to 0 ohms of resistance as possible. And when wiggling the harnesses/connectors the resistance value should stay low. If there is a variance in the values when wiggling the wires, you have a poor crimp/connection in the wiring harness or a poor ground at the engine dipstick tube stud. On 87 and 88 models, you could have a poor connection at the C101 connector as well.
Revised 06/12/2012

 

Thanks for all the advice guys we got it running like a champ now

 

Glad to hear of your success.
What finally got it "running like a champ"?
Inquiring minds want to know.

 

Clogged up injectors. We over looked it just because the injectors were all getting fire. But it happens. Its unstoppable now

 

Newberry, huh? I ride thru there every other weekend.