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got my car back today (r32 gtst with rb25det neo) and as you accelarate in low revs it stutters a bit...almost like its gasping for fuel and then as you give it a bit more on the gas it corrects itself after about 3500revs and revs smooth all the way to the top of the rev range. No its not a miss fire as ive had a miss b4 and this is different. car is pretty highly modded. just got splitfires, and have had gtr pump, 630cc injectors and microtech for ages. Car just had a full tune + remap and it was done by one of the best tuners in aus. not sure whats going on? can anyone shed some light before I call him in the morning?

thanks

Luke

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grab some CO contact cleaner from repco, clean the airflow meter wire. only do it if the car hasnt been run in atleast 12hrs

check for boost leaks.

fixed a mates 32 that way.

obviously no responsibility is taken if you damage the AFM or car in anyway.

-Ryan

Whats been done to it between tuning and getting it back?

because a light load misfire is pretty bloody obvious and your tuner should have mentioned something.

He must have done some light load tuning, and because the ecu is map based a vacuum leak doesn't really affect it if it was tuned with it.

so, it's either a vacuum leak thats happened after the tune, a sticky injector maybe, or the tune is up to shit.

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