03-29-2018, 11:17 PM
The ECu uses G102, ground in the dash to run ECU.
the shop manual covers all this, all wiring, and how to find grounds and all power feeds.
IF one cop fails, note that you just lost 2 cylinders dead.
this would make engine shake hard and stall.
The scan tool will show most errors, but not fuel lost. (no DTC for fuel line pressure low or lost) on this car. but loss of pressure never causes RPM tacho to drop instantanly, only slowly with actual real RPM falling, 1:1 relationship, if the tach falls like rack on say 4th gear going fast the , ECU did that. for a fact and means , you lost key sensors or power.
the shop manual covers all this, all wiring, and how to find grounds and all power feeds.
IF one cop fails, note that you just lost 2 cylinders dead.
this would make engine shake hard and stall.
The scan tool will show most errors, but not fuel lost. (no DTC for fuel line pressure low or lost) on this car. but loss of pressure never causes RPM tacho to drop instantanly, only slowly with actual real RPM falling, 1:1 relationship, if the tach falls like rack on say 4th gear going fast the , ECU did that. for a fact and means , you lost key sensors or power.
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