redmustang83596

So I just got my car up and running again. And im idleing the car and it idles perfectly. When i grab the throttle and put it up, say 1/2+ throttle it pops really loud. I havent set the timing just yet, just did it a little by ear. Is this because the timing is off? or could it be lack of fuel (tiny tiny fuel pump (60lph) with a H/C/I 302)

mjr46

well for one if it's an efi car , timing must be set with spout out and using a gun for accuracy

redmustang83596

I know how to set the timing, im just seeing if a car that isnt set perfectly in time will pop like that with a little throttle.

mattdel

yes it would, but that fuel pump is almost half the volume of a stock 302 mustang pump. upgrade the pump and do the timing right, you'll be fine.

mjr46

it could , now use a light on it!! if you had of you may not of ever even had to pose this question, good luck with it

redmustang83596

i know im getting a fuel pump tomorrow, the car has just been down for a month or so, so i was making sure it ran before i started tearing other things apart. So if I set the timing and it still pops, what can that mean?

mjr46

post a video of the noise if it still does it, could have a lean condition, or vaccum leaks contributing to lean condition, but take it one step at a time, do the above then go from there

redmustang83596

k.. set the timing and it stops popping... but it idles at like 2k rpms.. why is this?

Ketis

well you could try doing a base idle reset by disconnecting your battery for like 30-45 mins and disconnecting the IAC. then run the car and get it to operating temperature and set the throttle body screw then shut it off then plug iac back in

marksmustang

WHAT???????????