Question about 1999 Hyundai Sonata

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Getting fire to the coils, but not to the plugs tried to replace coil packs did not make a difference. can not get a diagnostic reading from brian, could the brain be bad or is there a relay that might not let me get a reading due to bad relay? Please help!

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If you're really 'serious' about FIXING this vehicle, get a qualified technician to DIAGNOSE the problem. You describe an ELECTRICAL issue which requires EXPERTISE!... Since you don't have it, you NEED someone who DOES! There are NO short-cuts here regarding your issue.
The 'brain' as you call it, is the ECU (Engine Control Unit). If it has malfunctioned, this NEEDS verification/validation!.... otherwise you'll be ENDLESSLY replacing parts/components BLINDLY!
GET IT PROPERLY DIAGNOSED!

Posted on Apr 08, 2011

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Posted on Jan 02, 2017

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