What are the correct plugs for Y2000, P38 4.0l V8 (Autobiography; obvs, petrol)?
And, specifically - are Champion RN11YCC bad for the engine?
Thanks
Chris
So, here's the thing, I've just replaced the plugs for the second time in ~8 years of ownership (I do less than ~6,000 miles a year.) The vehicle has done ~80,000 miles in 24 years.
The plugs in the engine when I bought it were RN11YCC's, and that's what I used to replace them.
Lately I was getting some dreadful throttle response (basically engine revs weren't increasing regardless of degree of throttle depression!
).
I changed the plugs for NGK BPR6ES's.
No improvement (yet). (Car is basically unusable in its current state.)
I have cleaned the mass air thingy with the designated cleaner.
Next, I'm going to replace the lambda sensors.
Oh, and I get a camshaft sensor error (bank A)… So I imagine that's been screwing up the ignition cycle.
Anyway, if you're still with me, am I on the right track? Or can anyone suggest an alternative direction in which to head? (Apart from directly to the pub?)