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#1
08-30-2005, 12:06 AM
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93 engine problem
I just bought a 93 grand cherokee that was hesitatiog, The plugs, wires, dist cap, rotor were all replaced. It hesitates and sputters when going down the road, The check engine light isn't on but, I tried pulling the codes any way, I get #12- battery is disconected... I have no idea how this is possible but, I charged it up and she still gets that code. any ideas on the sputtering? I was thinking tps, map, or the O2 sensor...
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Black 99 Jetta GLX VR6 Black 92 BMW 525I Blue 95 GMC Jimmy SLT 4.3L VORTEC V6 (Sold... Junk) Green 98 Jeep Cherokee SE (totaled Electrical fire) Red 95 Jeep Cherokee Sport (Gone) Green 93 Jeep Grand Cherokee Limited (for sale) [email protected] "Racing a ricer is just like competing in the special olympics, even if you win your still retarded" 
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#2
08-30-2005, 11:32 AM
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Re: 93 engine problem
The 12 code is to tell that the battery power has been interupted in the last 50-100 key on cycles.
For the hesitation/sputter, start with some fuel injector cleaner - could be an injector or maybe even the fuel pump or filter. The cam position sensor would be the first ignition component that I would check after the parts you've replaced though the TPS would be up there too.. Not a comprehensive list - just a place to start. There is a kind of a manual here for a 93 xj: http://www.lunghd.com/Downloads_and_Links/Downloads.htm JD
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#3
08-30-2005, 11:50 AM
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Re: 93 engine problem
is ther any way that I could test the fuel pump?
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Black 99 Jetta GLX VR6 Black 92 BMW 525I Blue 95 GMC Jimmy SLT 4.3L VORTEC V6 (Sold... Junk) Green 98 Jeep Cherokee SE (totaled Electrical fire) Red 95 Jeep Cherokee Sport (Gone) Green 93 Jeep Grand Cherokee Limited (for sale) [email protected] "Racing a ricer is just like competing in the special olympics, even if you win your still retarded"
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#4
08-30-2005, 01:54 PM
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Re: 93 engine problem
update... It isn't the tps, map, or the o2 sensor, the 02 sensor is new, the tps, and map sensor I swapped with my 94 cherokee, no change still hesitates/sputters... I was told by the dealer that is dosn't have a cam sensor just a thing in the dist that spins, I forget the name of it... it has fuel pressure but, I don;t know how much since I don't have a gauge. The computer is working fine, tried the one from my 94 w/o change... what next?
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Black 99 Jetta GLX VR6 Black 92 BMW 525I Blue 95 GMC Jimmy SLT 4.3L VORTEC V6 (Sold... Junk) Green 98 Jeep Cherokee SE (totaled Electrical fire) Red 95 Jeep Cherokee Sport (Gone) Green 93 Jeep Grand Cherokee Limited (for sale) [email protected] "Racing a ricer is just like competing in the special olympics, even if you win your still retarded"
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#5
08-30-2005, 08:01 PM
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Re: 93 engine problem
To check the fuel pressure, you'll need a gauge and a manual for finding the specs and test locations and procedures.
There is a build a gauge how to at this link http://minimopar.knizefamily.net/quickfpg.html or you can buy one like this KD 3386 from an automotive store http://www.mytoolstore.com/kd/kdengi02.html#3386. JD
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