Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSJEEP1991CHEROKEE 2WD L4-150 2.5L VIN P MFIREPAIR AND DIAGNOSISPOWERTRAIN MANAGEMENTAPPLICATION AND ID
1991 Jeep Cherokee 2WD L4-150 2.5L VIN P MFI
Powertrain Management: Application and ID
1991 Jeep Cherokee 2WD L4-150 2.5L VIN P MFISECTION Application and ID
Engine VIN Code [1] P
Engine Displacement 2.5L (153 cid)
Engine Configuration L4 OHV
Fuel System Multi Point Fuel Injection (MPFI)
Ignition System Hall Effect Electronic Ignition
Computer System Single Board Engine Controller II (SBEC II)
Remarks:
[1] The eighth digit of the VIN denotes engine code.
BODY CODE IDENTIFICATION
Body Code Model
MJ Comanche
XJ Cherokee
YJ Wrangler
SJ Grand Wagoneer
Engine Displacement 2.5L (153 cid)
Engine Configuration L4 OHV
Fuel System Multi Point Fuel Injection (MPFI)
Ignition System Hall Effect Electronic Ignition
Computer System Single Board Engine Controller II (SBEC II)
Remarks:
[1] The eighth digit of the VIN denotes engine code.
BODY CODE IDENTIFICATION
Body Code Model
MJ Comanche
XJ Cherokee
YJ Wrangler
SJ Grand Wagoneer
RENDER: 1.0x
NO RELATED
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.