ecm747x Wrote:Hello there,
I am new here but have been reading a lot of good information on this forum. Unfortunately my first post is of a possible problem.
I got my Dual EFIE about 2 weeks ago. Got back from vacation and installed it this past Monday. Installation was painless since my Intrepid's PCM is under the hood on the LH side and the 02 wires were easy to get to. Ohm"d them out to make sure the wire diagram I had was correct.
I am having a bit of a problem with it though. When I plug in the multimeter leads in the rh side, after unit has been on for about 10 minutes the voltage, which I set, maintains .230. When I put the leads into the LH side of the EFIE, the voltage will read .015 and not move. I have to hold the end of the Red lead up about and inch from center to get the voltage to start climbing. Once it steadies out it I can adjust it and have it matched to the RH side of .230. But, I have to hold the red lead like this to do so. If I let it fall back to center on its own, the voltage drops to .015.
I also noticed, when I got the unit that the LH POT. inside adjustment screw is pushed way in but it works when I adjust it. I can put the leads in the rh side and it reads the voltage correctly and is steady.
I am wondering if the lh side is even correcting the 02 voltage due to what it does when I first plug the leads in.
Any input will be much appreciated.
I think I understand, but I'm not sure. If I understand correctly, when you plug your meter leads into the red and black test ports on the left side, you don't read any voltage unless you move your red meter lead. Is that right? If so, then it sounds like I might've done something boneheaded. Please open the box and ensure that the wires are soldered to the test point terminals. I can't think of any other way that could happen. Also, to find out if the voltage is being supplied to the ECU, instead of measuring at the red/black test ports, measure at the white and green wires (note that right and left could be either way depending on how you're looking at the EFIE, so it may be the blue/brown wires that should be measured). I think you'll find that the voltage appears on the wires. It sounds like there's some issue with making connection at the test port. Let me know on this.
Regarding the pot, I'm not sure I'm understanding what you're saying. The adjustment screw can sometimes be in about 1/8" or so. If it's working at all, it should be fine. You can check the following post for some info about the adjustment screw: http://www.fuel-saver.org/showthread.php?tid=612
. Let me know if there's an issue regarding the adjustment screw.
Final note: You always have the option to send the unit back to me, and I will handle any issues that might exist. I'm just trying to avoid you having to wait for it, if it's a simple fix.