My 93 tid150 starting lacking power and not pulling in low revs but kicked on at 2000rpm as before, now the eml has come on. The garage checked for a fault and got `air intake problem`(sorry don`t know code number) and after a full day at the garage they`re still at a loss as to what`s causing it. They have removed the front end and checked all day looking for even a pinhole somewhere in a hose, given up, to start again tomorrow.
I`m getting a call from them tomorrow after they start afresh on the problem.
In the meantime, if anyone is able to offer a possible cause please do.....