Anyone have E-9 error code problems with their LC-1?
Thread Starter
Burning Brakes
Joined: Jul 2004
Posts: 1,172
Likes: 71
From: MA
Anyone have E-9 error code problems with their LC-1?
I just installed a Innoveate XD-16 gauge and a LC-1. I tapped into fuse 22 in the passenger foot well fuse panel. Also on this tap is a SPA duel boost/fuel pressure gauge, which draws about 300 ma. The ground for the LC-1, XD-16 and SPA gauge goes directly to the frame ground for the engine ground strap.
Without the sensor attached when I turn on the ignition without starting the car the LC-1 sometimes gives me the E-9 (low voltage) error code. Other times I get the correct E-2 error code because the sensor isn't attached. Sometimes when I turn the ignition on it reads E-2 and then when I start the car it changes to E-9 and will not change to E-2.
I have checked and double checked my wiring. The following are my voltages across the LC-1 power wire and and the ground wire:
Battery voltage car not running: 12 V
Ignition on without car running: 11.5 V
Car running: 13.5 V
Now I don't thing a 1/2 volt drop versus battery voltage should be an issue considering that the power lead is a switched source (has to go through ignition). In the LC-1 manual says that it should run at just 9 V.
Has anyone had a similar problem? If so, what did you do to solve it? Do I have a faulty LC-1?
Without the sensor attached when I turn on the ignition without starting the car the LC-1 sometimes gives me the E-9 (low voltage) error code. Other times I get the correct E-2 error code because the sensor isn't attached. Sometimes when I turn the ignition on it reads E-2 and then when I start the car it changes to E-9 and will not change to E-2.
I have checked and double checked my wiring. The following are my voltages across the LC-1 power wire and and the ground wire:
Battery voltage car not running: 12 V
Ignition on without car running: 11.5 V
Car running: 13.5 V
Now I don't thing a 1/2 volt drop versus battery voltage should be an issue considering that the power lead is a switched source (has to go through ignition). In the LC-1 manual says that it should run at just 9 V.
Has anyone had a similar problem? If so, what did you do to solve it? Do I have a faulty LC-1?
Melting Slicks
Joined: May 2002
Posts: 3,210
Likes: 1
I know the LC-1 is picky with the ground, if its not real good you will get errors. check out their forum, Klaus is very helpful www.tuneyourengine.com
Melting Slicks
Joined: Feb 2001
Posts: 2,804
Likes: 358
From: Northville, MI
If you go to the LC1 website in the FAQ you will find the ground position is the no. 1 problem...they recommend an engine ground rather than a frame ground. Also, they suggest you measure ground resistance if using multiple ground points.
