I recently fitted ablead valve,but had fuel cut at 17psi,ive now taken it off but the engine seems too be missing,it drives ok and boosts a little but not over 4000 revs and on idle,the hole car rocks can anyone help.

 

Have you put the original restrictor back in place?
have you tried disconnecting the battery for about an hour, then reconnecting, see if that "resets" the ECU?
May be worth a try before thinking more expensive

 

To the top

 

sounds like the car is in limp home mode.. do an ecu reset..

easiest way is leave battery disconnect overnight.

David

 

Up again for a worried mate.

 

thanks will try the reset

 

Sounds like you have burnt a piston or cracked a ring land.

 

Bttt