88si

only when its cold, cranks for like 4 seconds before it starts idles fine after that, its the stock motor btw. i put new plugs it , adjusted the valves, checked the timing its fine, adjusted the TPS, but im still having this issuse.
anyone have any ideas?

zerovandez

iTrader: (1)

clogged injectors maybe? change fuel filter? car has gas? bad fuel pump? Just suggestions.

88si

im gonna try a new fuel filter next,

B16AGUY

How cold are we talking here?
I have the same car and when it's cold out (i.e. winter conditions) it is slower to start for sure. 4 seconds is about right for me.

If it's not that cold then have your battery checked too just to be safe.
Throw in a bottle of injector cleaner and change the fuel filter.

green99civic

if its really cold were u live that could have a huge affect it has on the batt and motor

88si

no this is not normal, were having record heat right now in so cal, 80+ deg. when i shut the car off and let the engine cool down a few hours it does it again, but if the engine is still warm it will fire right up like normal

highcompb18c

check your fpr. take the vac hose off and smell for fuel - may have bad fpr.

trustdestruction

try changing the fuel filter

88si

what should the fuel pressure be at?

highcompb18c

Condition: engine idling, regulator vacuum hose disconnected
Pressure should be: 270 - 320 kPa (2.8 - 3.3 kg/Sq.cm, 40 - 47 psi)

Condition: engine idling, regulator vacuum hose connected
Pressure should be: 210 - 260 kPa (2.1 - 2.6 kg/Sq.cm, 30 - 37 psi)

thanks to alldata.

88si

thank you

highcompb18c

by the way, your motor should turn over and start right if you have a good battery and no problems. I'm from minnesota and it gets to like -30 degrees up here. when i had my B16, it always started right up - parked outside. I would wake up around 6:30am to go to work. ur motor should start right up in cali since its stock.

em1 rider

check dizzy also

BlackDeuceCoupe

My B16A2 Si motor had this problem. It didn't take "like 4 seconds" to start, but it definitely had to crank it a little when it was cold, before it fired - and I'm in Arizona, where it doesn't get very cold.

The 'fix' was to switch to regular unleaded - the premium unleaded was causing the problem.

Running regular makes my B16 car start up instantly, warm or cold, but it also makes the motor a little edgy. It doesn't knock, but it's like it always wants to go, sooo...

I started mixing some acetone with my fuel (2-3 oz per 10 gallons). That makes my B16A2 run smooth, baby, like a Cadillac!

I know this *sounds* crazy, but you might want to try it. I've run 100's of gallons of regular unleaded through my '99 B16A2 Si motor - and about 30% of that mixed with acetone - and it starts and runs great!