Just wondering if anybody had a similiar issue with their sr20det engine.

When accelerating quickly, there is a hesitation at about 4500-5000 rpm. We have checked numerous things and all the electronics, ecu, harness, spark plugs and coils,etc.

The last thing I can think of is a leaky intercooler. We have pressure test it and it seems find and also checked all the intercooler piping.

Has anybody experienced this before? What were the solutions. Thanks

 

No one has experienced this before???

 

What are the plugs gapped at? I had this problem when I raised my boost and fixed it just by narrowing my plug gaps.

 

I have no clue but could it be the rev limiter or is that removed??

 

fuel pump maybe? injectors.............. Could be a number of things, i had a problem with my stock fule pump and it was jolty up in the revs. i just got a new one.

 

O.K. My buddy has found the solution to the hesitation.

The hesitation started a few months ago. At the time we determined it was one of the coil packs for the spark plugs that was not igniting the way it should. We replaced it and it was still hesitating but not as bad as before.

He checked almost everything from Ecu, all electrical, wire harness, fuel pump, injectors, leaky intercoolers and so on.

He decided to go back at the begining and look at coil packs again and noticed a slight difference on the one that he got replaced compared to the original one.

There is a sticker with numbers on the original ones(S13) and a stamped/engraved number on the one he replaced. He compared them at a nissan shop specializing in 240 swaps and realized that the coil pack was from a S14 black top engine. When he bought it, he was told s13.

Lesson learned, Make sure that you have the right coil pack for the type of engine you have. They look very similiar and is decieving. It runs awsome now.

All the best......