bmdubya1198
Active member
- Joined
- Aug 24, 2016
- Location
- Charlotte, NC
Those are not injector grounds.
That's what I thought. I remember you or someone else saying that in one of my other threads.
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Those are not injector grounds.
Pretty sure without the grounds being clean and tight the car won?t run. Are they the grounds for the ecu?
Just because some voltage is getting to the relay doesn’t mean sufficient current is being supplied to the injectorsWhy would bypassing a relay when there is already power do anything for you?
Jumping the fuel pump relay doesn’t work on a 7/9 because it also provides power to the RSR. So your pumps will cycle but injectors won’t fire. At least on the ones I’ve driven.Pull the fuel injector relay, then jump power to the output. If it starts and runs, the ecu has failed to provide a ground, a common failure. Replace it.
There are two outputs from the relay and you jump power to both- I use a Y jumper.
There are two outputs from the relay and you jump power to both- I use a Y jumper.
Dang image quality got killed so you might have to google it. Pin 1 from the fuel pump relay runs up to fuse 9 (blue and yellow wire). Pin 2 from the RSR is also blue and yellow and runs to fuse 9. I think if the FPR does not energize, neither will the RSR. Just in my experience at least. On a 240 (where the RSR is absent), jumping the FPR works great as a temporary solution.WTF. Looking at a diagram shows it's a standard 4 prong relay. What the heck is this Y crap?
WTF. Looking at a diagram shows it's a standard 4 prong relay. What the heck is this Y crap?
You?re looking only at the RSR I think. The RSR is a standard style 4 post relay. It gets a constant 12v, constant ground, then when the FPR is energized, the blue/yellow wire on the RSR is as well. This closes the contacts on the RSR and allows current to flow to the injectors. Someone please correct me if I?m wrong, this is how I?ve inderstood it in the past when I was dealing with wonky RSR stuff.