Problems with car after new head

[DSMCharles]

Hey there guys I'm having some problems after getting a new head in my DSM.

Lets backtrack a bit. The reason I got a new head was because my AC belt snapped and jammed itself nicely into my timing belt. Bent pretty much all the valves.

So my mechanic sent it to a machine shop to get new valves have the head cleaned seals etc.

So I get it back and I notice the car accelerates really, really slowly. I get home and check the throttle plate at WOT. Sure enough its not fully open so I readjust it so that it is fully open at WOT and it isn't too tight that it revs in park.

I drive it around again and it seems a little better but it still feels like a considerable power loss. It takes quite a bit to go from 0-30. After 60 mph though acceleration seems normal. I hear the turbo spool upon acceleration but it does very little to get me from 25 to 35 mph.

To top it off I have a code which comes on after a bit of driving.

Any help is greatly appreciated thanks!

 

[95eclipseguy]

I would be checking for boost leaks, vacuum lines cracked or unplugged, even sensors unhooked. You'd be amazed at what little things can be overlooked when putting everything back together. No matter how methodical one is, it's easily done.

Oh, that code is sure to be pointing you in the right direction.

 

[fatal1]

unfortunately with such a vague description it can be so many things. the fact that it responds normally when you reach a cruising speed would point more towards a boost leak. as said though it can be so many things. check all your basics and go from there.

 

[ZeGaNe69]

Are you sure the camshafts are lined in mark?? Especially exhaust.

That`s one of my experiences.

 

[awd4u]

i would check the work over, go back to what you disconnected, and make sure everything is in the right place and right.. if everything is good, i would do what ZeGaNe69 said. hope you fix the problem.

 

[LiquidX]

Double check that the timing marks all line up.

I would honestly hold the mechanic liable for fixing the issues he's created. It should run perfect if it was just bent valves and they were fixed.

 

[ZeGaNe69]

Use a ruler or something similar.

Here is picture of the 6G73 DOHC engine, but you get the point. I`ll never ever trust lower timing belt cover for checking the marks. One mistake, and you regret to the end of life

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[spydreclips6]

Sounds like a boost leak to me. My 1g did the same thing, and it turned out when they did the head job they put a paper gasket on the intake manifold instead of the metal one. I guess they thought it would hold up to the boost pressure.