need help asap - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

Specter · 01-08-2007, 01:06 PM

okay i got the engine running... here's the problem, it will not idle. it'll start, run for a few seconds, rev to like 2000~2500 rpm and then drop to 0 rpm and die...

i've plugged all the vaccume lines [removed EGR] and that's all that i can really thing of. the only other thing is the AAI [idle speed controler]

any and all help would be nice

thanks

-Peter

mjjstang · 01-08-2007, 03:42 PM

haaa, this is what is exactly happening to me, for the last 2 years, on my sr. wish I knew what engine you were talking about but I will assume its a DE. anyway ill watch this thread, change your IACV and see what happens.

Specter · 01-09-2007, 11:54 AM

yeah sorry, it is the KA24DE.

i've been getting a lot of contradicting info on the timing procedure that i followed to set the base timing in the first place and low and behold i can find no such info in the Nissan FSM so i guess i have a new question.

what is the correct base timing procedure?

and second off why would the IVAC go bad after only sitting on a shelf for three weeks while the engine got a rebuild?

thanks again

*MELLO*SOS* · 01-09-2007, 12:46 PM

iirc the timing procedure goes something like this... warm the motor, unplug the tps, rev the motor to 2-3k & let stabilize, adjust idle to 650-ish RPM using IACV screw, rev the motor to 2-3k & let stabilize, adjust distributor until timing is 20-ish degrees btdc, tighten distributor, reconnect tps. Double check the FSM for the procedure, it's in there. The marks on the crank pulley are for, +5, 0, -5, -10, -15, -20.

And here is a trick I came up with to help see where the timing pin lines up on the marks...

You should also check your MAF wiring and connections (2500 limit = safe mode?). Never hurts to pull the codes from the ECU, it could help point you in the right direction.

steve shadows · 01-09-2007, 12:53 PM

MAF

01-08-2007, 01:06 PM	#1
Specter Join Date: Dec 2006 Location: chicago Age: 40 Posts: 16 Trader Rating: (0) Feedback Score: 0 reviews	need help asap okay i got the engine running... here's the problem, it will not idle. it'll start, run for a few seconds, rev to like 2000~2500 rpm and then drop to 0 rpm and die... i've plugged all the vaccume lines [removed EGR] and that's all that i can really thing of. the only other thing is the AAI [idle speed controler] any and all help would be nice thanks -Peter

01-08-2007, 03:42 PM	#2
mjjstang Post Whore! Join Date: Apr 2003 Location: Michigan Posts: 2,654 Trader Rating: (5) Feedback Score: 5 reviews	haaa, this is what is exactly happening to me, for the last 2 years, on my sr. wish I knew what engine you were talking about but I will assume its a DE. anyway ill watch this thread, change your IACV and see what happens. __________________ I was going to, but I can not think of a sig less than 75 characters.

01-09-2007, 12:53 PM	#5
steve shadows Post Whore! Join Date: Aug 2003 Location: LA and OC Posts: 8,202 Trader Rating: (5) Feedback Score: 5 reviews	MAF __________________ Like Me on FaceBook !

01-09-2007, 11:54 AM	#3
Specter Join Date: Dec 2006 Location: chicago Age: 40 Posts: 16 Trader Rating: (0) Feedback Score: 0 reviews	yeah sorry, it is the KA24DE. i've been getting a lot of contradicting info on the timing procedure that i followed to set the base timing in the first place and low and behold i can find no such info in the Nissan FSM so i guess i have a new question. what is the correct base timing procedure? and second off why would the IVAC go bad after only sitting on a shelf for three weeks while the engine got a rebuild? thanks again

01-09-2007, 12:46 PM	#4
MELLOSOS* LAID OUT Join Date: Mar 2004 Location: LAS VEGAS Age: 43 Posts: 2,015 Trader Rating: (1) Rides Gallery: MELLO*SOS Feedback Score: 1 reviews	iirc the timing procedure goes something like this... warm the motor, unplug the tps, rev the motor to 2-3k & let stabilize, adjust idle to 650-ish RPM using IACV screw, rev the motor to 2-3k & let stabilize, adjust distributor until timing is 20-ish degrees btdc, tighten distributor, reconnect tps. Double check the FSM for the procedure, it's in there. The marks on the crank pulley are for, +5, 0, -5, -10, -15, -20. And here is a trick I came up with to help see where the timing pin lines up on the marks... You should also check your MAF wiring and connections (2500 limit = safe mode?). Never hurts to pull the codes from the ECU, it could help point you in the right direction.