I have seen people forget the ground strap on the back of the head and try to run the strap from the firewall to the exhaust manifold bolt with no luck. For some reason that ground needs to be attached at the head.

 

I was able to check the ground strap behind the heads, it was attached but only loosely. To clarify, I need to find grounding points along the engine bay not the actual engine itself, correct?

Also with your misfire issue, did it actually misfire? Did you feel any drop off in power or the engine running sluggish? I haven't gotten it in some days now, but when I did I felt no difference.

Thanks.

 

Your memory serves you correctly, there's a ground point between the battery and fuse box. Looks like a good point to connect to.

 

Sorry for the delay in response. I actually mounted those wires to the engine itself, like along the head bolts and also around the engine bay, alternator, throttle body, etc. Then I clustered the wires and connected to the negative terminal, not the grounding strap.

 

No prob! Thanks for the clarification. So after tightening the ground strap I drove around today and my SRS light turned off! I also noticed my battery voltage slighty up which averaged 13.7 to now 13.9/14.0. It's only been one day and can't be entirely sure a simple tightening down of a ground strap did the trick, but hopefully it is. Haven't gotten a misfire code in a while either.

Thanks y'all for the help, I'll continue to post if something else comes up.

 

I had a loose strap and had a laundry list of codes. Hopefully you fixed it!

 

you would be surprise what trouble that little strap can do, ask someone with a melted emergency brake assembly

 

I'm glad the OP figured it out... Congrats.

Just for posterity I want to add to my previous post that if anyone adds extra grounding following the guidance above, make sure you ground to an obvious, real grounding point. When I mentioned my off road lights above, I neglected to mention that I initially grounded them to a bolt on the body in the engine bay, and I luckily ran my hand close to that spot without gloves after driving it with the lights on... To find that the fender was hot enough to burn me at that location. Clearly it wasn't a good spot to ground. Moving it to the spot behind the battery box fixed that problem.

If the strap is loose current will travel through the transmission, the metal handbrake lines, or wherever until it reaches something that connects to something else that is grounded back to the battery. Of that something has a small contact or is a skinny wires it will get real hot. As Dro mentioned, it can actually weld your handbrake cable to other parts. Imagine if you touched metal on the handbrake while that was going on. Dangerous situation there and it is surprising that the little grounding strap makes so much difference until you consider that the engine, transmission, etc have rubberized mounts to the frame.

 

I had an old Volkswagen that had a loose ground wire that attached to the transmission. I noticed some weird dimming of the headlights a couple times, but no other issues at the time. Then about a week later, it wouldn't start anymore even though the battery voltage was about 13v with no load on it. I thought maybe it was a bad cell in the battery. So I had someone turn the key to the start position and hold it while watching the cells in the battery for boiling. After about 10 seconds, one of the wires going to a side marker light started burning. So that lead me to check the grounds. The bolt holding the ground to the bell housing had backed out just a little bit.