w202 stalling problem

[mo916]

Hello everyone,I'm new to this site/forum & what a good forum it is.I have a 1994 c220 auto. which is not behaving its self.When I go to pull away from stand still it will stall unless I am very gentle with the throttle.I took it to a local garage who told me it needed a new timing chain ( it has rattled since the day I got it) & when conected to a diagnostic machine it had a manifold fault code come up.They suggested that because the chain was soo worn it was throwing the timing out.So this weekend gone I changed the chain & fitted a new tensioner.But this has made no difference.It doesn't rattle quite so loud now.Also when I took out the spark plugs the ends were not a nice biscuit brown,they were an orange/red colour,which can't be right.Has anyone one got any suggestions as to what the problem might be.
Cheers mo916

 

[horgantrevor]

have you checked for a broken earth strap to engine or very poor one

 

[mo916]

Cheers horgantrevor I will give that a try.Is that the one that goes to a engine/gearbox bolt.

 

[WOODYTHEWISE]

Hi,Yes thats the one.

 

[grober]

Orange red coloured plugs could mean rust/water in the fuel= possible fuel tank/pump/filter/lines problem. May mean a low fuel pressure/ weak mixture problem. A weak mixture by itself would normally give you light coloured plugs.