no spark, no power to injectors
10-09-2012, 06:46 AM
#1
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Model: Cherokee
no spark, no power to injectors
1999 xj sport. My AC compressor pulley seized and it would stall the engine. So I put on an AC delete pulley on started the Jeep ran beautiful shut it off started it again a few minutes later ran for 2 minutes then it shut itself off. I stupidity disconnected the battery so I deleted any codes it threw. I replaced the distributor cap and rotor and the starter coil still no spart the the distribitor I'm getting power to the new coil but no spark. I know the injectors won't pulse if there's no spark so I'm not to worried about them. It tested the CPS it seems good. Any help would be great. Thanks
10-09-2012, 08:21 AM
#3
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Year: 1999
Model: Cherokee
Engine: 4.0
sk8rjd,
lowrange2's advice is spot on, but before jumping on the CPS do these simple checks:
Check the Automatic Shut Down (ASD) relay power fuse in the Power Distribution Center (PDC) - it's fuse F19, 25A. Swap the ASD relay with the Radiator Fan relay (PDC) and give it a try. Still no luck? Check the ASD relay control coil power fuse, F11, 20A, in the Junction Block (JB). Still no luck? Do what lowrange2 suggests and recheck the CPS.
PDC and JB images:
lowrange2's advice is spot on, but before jumping on the CPS do these simple checks:
Check the Automatic Shut Down (ASD) relay power fuse in the Power Distribution Center (PDC) - it's fuse F19, 25A. Swap the ASD relay with the Radiator Fan relay (PDC) and give it a try. Still no luck? Check the ASD relay control coil power fuse, F11, 20A, in the Junction Block (JB). Still no luck? Do what lowrange2 suggests and recheck the CPS.
PDC and JB images:
10-09-2012, 08:46 AM
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Model: Cherokee
Originally Posted by CCKen
sk8rjd,
lowrange2's advice is spot on, but before jumping on the CPS do these simple checks:
Check the Automatic Shut Down (ASD) relay power fuse in the Power Distribution Center (PDC) - it's fuse F19, 25A. Swap the ASD relay with the Radiator Fan relay (PDC) and give it a try. Still no luck? Check the ASD relay control coil power fuse, F11, 20A, in the Junction Block (JB). Still no luck? Do what lowrange2 suggests and recheck the CPS.
PDC and JB images:
lowrange2's advice is spot on, but before jumping on the CPS do these simple checks:
Check the Automatic Shut Down (ASD) relay power fuse in the Power Distribution Center (PDC) - it's fuse F19, 25A. Swap the ASD relay with the Radiator Fan relay (PDC) and give it a try. Still no luck? Check the ASD relay control coil power fuse, F11, 20A, in the Junction Block (JB). Still no luck? Do what lowrange2 suggests and recheck the CPS.
PDC and JB images:
10-09-2012, 09:11 AM
#6
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1. Near the rear of intake manifold, disconnect sensor pigtail harness connector from main wiring harness.
2. Place an ohmmeter across terminals B and C (See Image). Ohmmeter should be set to 1K-to-1OK scale for this test.
3. The meter reading should be open (infinite resistance). Replace sensor if a low resistance is indicated.
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10-10-2012, 05:49 PM
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Year: 1989 xj sport 2dr
Model: Cherokee
Engine: 12 hole bosch Injectors
disconecting battery will not delete codes on newer model quit throwing parts at it and scan it for codes.jmm2cw
10-11-2012, 05:13 AM
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Model: Cherokee
Originally Posted by freegdr
disconecting battery will not delete codes on newer model quit throwing parts at it and scan it for codes.jmm2cw