Obd2 power but will not connect. I have a will crank but no start.
Nov 17, 2018 at 11:54 AM
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ASEMASTER6371
AUTOMOTIVE REPAIR CONTRIBUTOR
52,796 POSTS
Good afternoon.
What kind of scan tool are you using?
Does the check engine light work?
Did you check all the fuses for power on both sides?
I have a tech 2 and a smaller Mac the obd2 port has power and ground but will not connect. Yes and relays. I can jump across the fuel pump relay to get it on it has 55# pressure. But no spark or fuel when cranking through, good compression too.
Nov 17, 2018 at 12:29 PM
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ASEMASTER6371
AUTOMOTIVE REPAIR CONTRIBUTOR
52,796 POSTS
Okay, check for powers to the PCM. Make sure you have ignition and battery power.
I attached wire diagrams for you to view of the fuel system as well as the ignition system.