Bad gas mileage
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Junior Member
Joined: Dec 2009
Posts: 37
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Model: Cherokee
Bad gas mileage
I have a 1988 cherokee and recently i replaced the header tps full exhaust no cat new tps fuel pump and filter and before i was getting around 16 to 20 mpg and after my tps went out and egr i cant seem to get it back up i get 10 to 12 right now. people say o2 sensor but it runs like a champ and doesnt smoke at all?
CF Veteran
Joined: Mar 2009
Posts: 8,712
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From: Loomis,California
Year: 1987
Model: Cherokee
Engine: 242 inline six
I have a 1988 cherokee and recently i replaced the header tps full exhaust no cat new tps fuel pump and filter and before i was getting around 16 to 20 mpg and after my tps went out and egr i cant seem to get it back up i get 10 to 12 right now. people say o2 sensor but it runs like a champ and doesnt smoke at all?
Thread Starter
Junior Member
Joined: Dec 2009
Posts: 37
Likes: 0
Model: Cherokee
Not really but did have to re wire the o2 sensor for the header relocate i wonder if one of the conections isnt good but already replaced the o2 sensor would there be a sign if it were bad
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