Hey guys.... just getting around to hot wiring my fuel pump.... it is a Walbro 307.... ordered a 340 over 2 months ago... still haven't got it :-(
I was going to wait to do the hot-wire when I installed the 340.....
I currently have a pretty much stock motor.... all car's mods listed in my sig....
Question.... What symptoms do you have if you "need" to hotwire your pump..... ie. "My car used to hesitate some during a blast.... and after I hotwired my pump...... it went away....."
I don't see anything in my DS logs to suggest I am starving for fuel.... but I get some periods of not pulling smoothly during a short blast..... like it pulls good for 3-4 seconds.... nice and smooth... and then hesitates ever so slightly..... for a second or two.... and goes back to pulling smoothly....???
I got to thinking that maybe the stock O2 sensor response was not fast enough to see this.... i.e. the DS log shows fine for O2 mV throughout the run... even though there was some hesitation.
I didn't notice any of this hesitation when I was down at 13 psi boost.... but now that I am running 23+ ... it is there..... just have never figured out what it was.......
Any ideas?
I was going to wait to do the hot-wire when I installed the 340.....
I currently have a pretty much stock motor.... all car's mods listed in my sig....
Question.... What symptoms do you have if you "need" to hotwire your pump..... ie. "My car used to hesitate some during a blast.... and after I hotwired my pump...... it went away....."
I don't see anything in my DS logs to suggest I am starving for fuel.... but I get some periods of not pulling smoothly during a short blast..... like it pulls good for 3-4 seconds.... nice and smooth... and then hesitates ever so slightly..... for a second or two.... and goes back to pulling smoothly....???
I got to thinking that maybe the stock O2 sensor response was not fast enough to see this.... i.e. the DS log shows fine for O2 mV throughout the run... even though there was some hesitation.
I didn't notice any of this hesitation when I was down at 13 psi boost.... but now that I am running 23+ ... it is there..... just have never figured out what it was.......
Any ideas?