156 2.4 boost problems, help!?!
Strange boost problem on my 01 2.4 10v derv drinker. In 1st and 2nd gear the boost is fine and drives well. In 3rd gear at about 3150rpm the boost dissapears, in 4th boost goes at about 2750rpm and then comes back at 3500rpm and 5th the boost flutters in an out very quickly but never really boosting properly. It was worse, but after a recent oil change this has improved. Sometimes it works as it should (although never in 5th) other times there simply is no boost. But still it always works in 1st and 2nd. I can only think it is either a time or maximum boost related thing. Any body got any ideas, all suggestions welcome! Thanks for reading and helping.