1994 Lexus ES 300 no spark to 3 cylinders

1994 LEXUS ES 300
175,000 MILES • 6 CYL • FWD • AUTOMATIC
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TOBO1201
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i am only getting fire to the number 1,2,& 4 cylinders
i have checked the coils & plugs and changed out the ignitor & ecu but still have same problem
the car will start and idle rough on 3 cylinders
i do have 12 volts to all the coils
Jun 9, 2010 at 12:07 PM
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RASMATAZ
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Hi tobo1201, Welcome to 2carpros and TY for the donation

Check and test the plug wire for no.3 and also the crankshaft position sensor
Jun 9, 2010 at 1:30 PM
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TOBO1201
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i am not getting fire to 3 cylinders not just the #3 cylinder it does not have plug wires it ihas a coil for each cylinder the coils and plugs are all good
Jun 9, 2010 at 8:21 PM
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RASMATAZ
  • ✓ASE Certified Mechanic
  • 75,992 POSTS
  • ASE Certified Mechanic
i am only getting fire to the number 1,2,& 4 cylinders

I thjought its only no.3 okay check and test the crankshaft positon sensor
Jun 9, 2010 at 9:33 PM
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TOBO1201
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  • 6 POSTS
i have already changed the camshaft sensor and i get good signal to ecu from the sensor
Jun 10, 2010 at 3:58 AM
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RASMATAZ
  • ✓ASE Certified Mechanic
  • 75,992 POSTS
  • ASE Certified Mechanic
Did you check the CPS
Jun 10, 2010 at 4:24 AM
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