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Jeep Wrangler YJ
YJ General Discussion
Running rich, sputtering under load
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<blockquote data-quote="Drossiter" data-source="post: 432242" data-attributes="member: 19898"><p>95 wrangler 4.0 5 spd </p><p></p><p>I have a problem that has me scratching my head. I had an issue with it running rich, sputtering, and missing. When accelerating, it spits and sputters worse than when just revving standing still. I did a compression test and discovered the piston rings were leaking. I rebuilt the motor. Bored 20 over. Rebuilt head. All new everything. Put it back together and still have the same problem. </p><p></p><p>Replaced distributor, cap, rotor, wires, plugs, coil, fuel pump and filter were replaced due to low pressure. New injectors, IAC, MAP, and TPS. New temperature sensors, new CPS. </p><p></p><p>Couldn’t figure it out so I took it to one shop. They diagnosed it with a bad alternator, replaced it no change. Took it to Jeep, they diagnosed it with a bad PCM. Replaced it, no change. </p><p></p><p>I am getting codes 13 and 24. I’ve replaced the TPS four times. I’ve tested the signal code and I’m getting proper voltage readings through to WOT. I’m stumped. </p><p></p><p>I did discover the seal on my gas cap is broken so I’ll be replacing that but I can’t imagine that’s the problem. Any suggestions would be great. Jeep doesn’t want to mess with it anymore.</p></blockquote><p></p>
[QUOTE="Drossiter, post: 432242, member: 19898"] 95 wrangler 4.0 5 spd I have a problem that has me scratching my head. I had an issue with it running rich, sputtering, and missing. When accelerating, it spits and sputters worse than when just revving standing still. I did a compression test and discovered the piston rings were leaking. I rebuilt the motor. Bored 20 over. Rebuilt head. All new everything. Put it back together and still have the same problem. Replaced distributor, cap, rotor, wires, plugs, coil, fuel pump and filter were replaced due to low pressure. New injectors, IAC, MAP, and TPS. New temperature sensors, new CPS. Couldn’t figure it out so I took it to one shop. They diagnosed it with a bad alternator, replaced it no change. Took it to Jeep, they diagnosed it with a bad PCM. Replaced it, no change. I am getting codes 13 and 24. I’ve replaced the TPS four times. I’ve tested the signal code and I’m getting proper voltage readings through to WOT. I’m stumped. I did discover the seal on my gas cap is broken so I’ll be replacing that but I can’t imagine that’s the problem. Any suggestions would be great. Jeep doesn’t want to mess with it anymore. [/QUOTE]
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Jeep Wrangler YJ
YJ General Discussion
Running rich, sputtering under load
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