Did I make a mistake with putting v-power. Shell 91 octane? My manual version f20b now has this weird sensation every other second of a putter at idle, and from stops it putters like crazy accelerating until I get going, into secound. The pros tlkd of doing all necessary things for the cooling down to replacing the rad cap. I'm most certain it's not my iacv, and compression numbers are outstanding what can this be, from simply putting 91 octane. It's not fair. Please.... Help

 

Provided you have the f20b dohc vtec, you should already be using 91 octane. It's probably running better as a result.

If you have the f20b sohc vtec, it's not going to hurt it, but it's just going to be a waste of money.

 

Yes DOHC

 

i use shell gas and motor oil. i used to use exxon gas and oil until the exxon station closed

 

I wish we had a mobil one station, I was short on info the car was tuned on year old 85 grade junk fuel. You think using the proper fuel clashed with the massive cams throwing the timing? Is that proper cause to return to the shop for a free retiming, you think that can be the cause? Remember it was fine on that old fuel released from zerbys that was running the timing so maybe the changes in detonation threw her off causing the puttering, opinions plz!!!!

 

Is knock sensor operation turned off ?

 

No knock sensor, I've been meaning to put my f22 on the sir- t f20b motor but it's not there

 

May simply be a bad tank of fuel. If this is the first time using 91 you may have just sucked up bad fuel.

 

I put in some techron fuel cleaner and it quit its puttering the idle surge vanished after Iresetted the ecu alls seems well , just gotta blow thru the gas :-) need a ride!!!