wthorne Posted September 18, 2013 Share Posted September 18, 2013 Okay so I have a 1990 z32 N/A. I installed a set of Z1 headers on the car last week. When I picked it up from the shop I noticed a slight hesitation under acceleration . Everything else is fine just under power does it do this. I have researched everywhere online and find so much that could be the problem. Could the shop have messed something up? Vaccum line? O2 sensor damaged? I noticed that they removed the brake master cylender during the job and unplugged many vac lines. I have checked all of them and they seem fine. Could running the headers cause the car to run this way? Any help you may offer would be greatly appreciated.Thanks,Bill Quote Link to comment Share on other sites More sharing options...
wthorne Posted September 20, 2013 Author Share Posted September 20, 2013 Someone help please... Quote Link to comment Share on other sites More sharing options...
johnc Posted September 20, 2013 Share Posted September 20, 2013 A good set of headers should require a tune. Take it back to the shop and explain the problem. Quote Link to comment Share on other sites More sharing options...
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