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Old 03-22-2012, 01:07 PM   #1
Join Date: Apr 2011
Posts: 154
yj running rich

I have a 95 yj I recently swapedd on the 4.0 throttle body onto my 2.5. I bored out the intake man. To match the increased diamater. Now after hard acceleration I get a really strong odor smell. Which leads me to believe oit's running RIch? Any ideas? I swear this thing is getting 9 MPG with 33's and 6 inch lift.
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Old 03-22-2012, 01:15 PM   #2
Join Date: Jan 2010
Location: Las Cruces, NM
Posts: 2,303
I would think the computer and o2 sensor would compensate.....is the evap canister connected?

(Sold)1994 Jeep Wrangler 2.5L, Bestop top
/w steel half door and slider windows
5 speed, 2.5" lift, 31" tires,rack lights
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Old 03-23-2012, 05:26 PM   #3
Join Date: Apr 2011
Posts: 154
Yes, the canister is connected. I don't know if it matters if I drive withought a had cap on or not.. . I've boughten 3 of them and always seem to loose them haha
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Old 03-23-2012, 10:46 PM   #4
Join Date: Aug 2011
Location: north of St.Franisville La.
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IDK what cap is , did you use the 2.5 Idle control?
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Old 03-26-2012, 11:18 AM   #5
Join Date: Apr 2011
Posts: 154
My gas cap, sorry, yes I used my I controlled sylonoid off my throttle body and used the 4.0 tps since they were the same part #
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