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Hello again Matt, Well ive gone over all the hoses and conections,,, what i found was this....... 1. no EGR...... sensor in manifold. 2. with air flow sensor disconected it improved . 3. with heat? sensor disconected it improved about the same as in (2). 4. with both disconected it got worse.
I can only think its a combination of both, i shall replace both in turn, ill let you know how its goes.........
ps, Oh Lordy give a 4 pot perky and big hammer any day
Hi Matt, Just an update.
Run all day yesterday with the MAP disconected, misfire was much improved but not totally gone, power/torque was about the same upto about 2500, then went flat,,( no turbo boost as expected).. Knowing i had a long run on this morning i needed the top end more than no misfire so reconected MAP,, The misfire reappeared as normal but the whole thing was running rough, after about 20 mins i made a stop for diesel/fags and the loo. Well in all it stood for about half an hour before restarting, it was now running nice but still had misfire,,BUT, power/torque was noticeably improved ( by how much, well it pulled in every gear as if it was a gear lower if that makes sense ).
Infact its never run so well or pulled so strong as this morning, so im still thinking the MAP is shot but wondering if i i have some unseen fault lurking in the shadows ?. Tom