NCRX791

iTrader: (6)

Alright...I have a 91 n/a and today I put on the RB header and presilencer. Well, I hooked everything up right and went to start the car and it revved up to around 4k and then just dropped and cut off. I started it up again and it did it again and it then I held the accelerator and I kept it alive. Well I took it around the block and when I came to a stop sign it would not idle and it just cut off...

I think it may be that I am not getting enough fuel, but then again I am not sure. Do you think that it mattered that I could not attach my o2 sensor? could that be it or do you think I need a bigger fuel pump? I also adjusted the idle down.....before I had it turned all the way up so that it would idle right....but once I put this set up on...I lowered it today.....

If there is a thread on this...and there is an answer then point me in the right direction.......but other then that I searched it and couldnt find anything.....thanks.

patman

iTrader: (3)

umm..yeah..you need an o2 sensor. the o2 sensor tells the computer how much fuel to inject. if there is no o2 sensor, it has to 'guess'. this is bad. it means that you are probably running way too lean if you have mods. witht he o2 sensor, the computer can adjust for the mods, to some extent. wihtout it, it just puts in fuel according to the stock fuel map. in a modified car this is very bad. get an o2 sensor. personally, i thought that the rb header had an o2 sensor bung in it..but i dont have one so i dunno.... anyway, you may have to drill and tap a hole for it...which really isnt that big of a deal if you know whatur doing.

pat