I've ordered new spark plugs today, but while I wait for them to arrive, how would I go about checking the grounds?
So far I've noticed there is an earth strap from the back of the engine block to the chassis on the UK driver side (US passenger side). I'm also aware of a grounding point underneath the throttle body.
What exactly do I need to do? It looks like I can replace the rear strap with a new thick gauge wire and new connections, but what should I do with the one under the throttle body?
Where else should I check for faulty ground connections?
gap the new plugs to .030" and see what happens. a lot time ago (cira 2007), I rmeember having this issue when I was having spark blowout...the logs would show hard resets everytime I hit around 7psi or so. Swapped plugs and wires and the the issue was resolved.