Problem solved (hopefully)

Hello all, for about 3 weeks I have had lumpy running issues, and lack of power with my P38 Vogue (4.6 THOR ), have had it on the Nanocom, Maf,Lambdas, all seemed OK, did a Compression Test, and got a high reading on No8, after doing some searching I thought broken Rocker Shaft, so ordered a new one, the next morning it was running OK again, I was baffled now! A week later it was running rough again, a rocker shaft cant break and then repair itself can it? so I'm now thinking CATS, as I've had the Bad-egg smell during this time, had it on the Nanocom again and got fault code PO300 Missfire multiple cyls signal Too High Drive cycle C I think it was. Went for MOT, Failed on emissions which I expected but only on CO on 1st and 2nd Fast idle 1.11and1.23 respectively, I was now preparing to spend nearly 600 quid on new Cats and Lambdas (Rimmers Sports Cats) to avoid dropping the crossmember, Today I had a thought maybe some new plugs might help, so I got a set of NGK'S, I opened the bonnet and saw No6 lead hanging in mid air! replaced it and all back to normal, fitted the NGK'S, went for a run, SWEET AS A NUT AND ALL THE POWER BACK WOO!HOO! fingers crossed emissions should be OK now, apologies for the long post, thanks for listening ANDY

The moral is always look at the obvious before you splash the cash, opening the bonnet helps

Datatek said:

The moral is always look at the obvious before you splash the cash, opening the bonnet helps

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+1 simplest and cheapest first

:doh:

I know, I feel a bit of a #### now! just glad I sorted it, now for the emissions re-test!