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Rb25detJay · 07-27-2019, 01:40 PM

Hey guys I have an rb25det swapped 240sx which i received recently.

I changed the following things recently

spark plugs from brp6es to brp7es
Coil packs from Yellow jackets to splitfires

I noticed it was backfiring on idle and when I revved it, it seemed to be revving rough or have some sort of lag.

I gapped the brp7es to .28 and the backfiring at idle stopped.

However, the rough idling and the rough shaking still stays, any ideas on what it could be ? Thanks

I'm relatively new to the S chasis and the RB, any and all help would be appreciated.

07-27-2019, 01:40 PM	#1
Rb25detJay Join Date: Jul 2019 Location: Toronto Posts: 1 Trader Rating: (0)	Rb25det Running ROUGH Hey guys I have an rb25det swapped 240sx which i received recently. I changed the following things recently spark plugs from brp6es to brp7es Coil packs from Yellow jackets to splitfires I noticed it was backfiring on idle and when I revved it, it seemed to be revving rough or have some sort of lag. I gapped the brp7es to .28 and the backfiring at idle stopped. However, the rough idling and the rough shaking still stays, any ideas on what it could be ? Thanks I'm relatively new to the S chasis and the RB, any and all help would be appreciated.