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Bucking under pressure

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dthquazi1

15+ Year Contributor
867
2
Jun 18, 2003
Ok so i start driving my dsm again and this happens.

When i start to boost my car starts to buck. It doesn't do it in 4th or 5th gear however. It hits boost then Stops pulling and pulls a little more and stops pulling again. I have had bad plug wires and it is not like that but similar. Could that or plugs be the problem. I am getting no knock when it does this and it only seems to happen when my bov opens. Also my fuel trims have been way out of whack. I had a 139 low fuel trim that would not change. It finally went back down to 92 but it still bucks. Could these be causing the problem?
 
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