Start up Issue -I've Searched all over. - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

TSLegendary · 09-04-2008, 04:14 AM

Sup Guys,

I've searched on here and found that most of the start up issues are just cold start issues, and then the car runs terrible, but my problem is different. This started about 2 weeks ago,The SR cranks fine but wont start unless i give her gas.I changed the Coolant Temp Sensor and the car runs perfectly fine once its started.It may run rich a little but its nothing that really bothers me as i have heard this is common with the E Manage's.I recently got dyno tuned with the issue still being there but even after the tune (which is running perfect now)it's still the same case.I always need to give her some gas to get her started.After that she runs perfectly fine.I've found from causes to be from bad 02 sensors, bad igniter chips and bad injector o rings or MAFS but i want to know if anyone has experienced this and would like to know what they did to solve the prob as i dont have the cash at the moment to be buying a lost of stuff to not fix the problem.(like the coolant temp sensor)

I have a Z32 MAFS,255 pump and 550's. The car ran perfectly fine and just out of no where started doing this.Any input on this?

Thanks-

Sileighty_85 · 09-04-2008, 06:17 AM

Clean your IACV its probably stuck or stickin

Run it up pull off the IACV pipe, have some one keep the RPM's stablized and spray Throttle body cleaner down the pipe until you think its good enough.

But dont just continusly hose it down spray like 5-7 seconds and let it clear up and then again

TSLegendary · 09-04-2008, 03:44 PM

Thanks Sil, I've tried this also and changed the fuel filter to a z32 one but i haven't tried it spraying in 5-7 sec intervals.Going to try this out again.Oh and by the way my valve head cover has a tiny ticking noise into a constant tick but a momentary faint tick, i've suspected its the timing chain and haven't minded it but its been doing that since the problem accrued and my alternator/water pump belt squeeks at cold start.Just looking at random things that may cause it but i am not sure.I will check back on here if there's any other suggestions.

09-04-2008, 04:14 AM	#1
TSLegendary Leaky Injector Join Date: Sep 2007 Location: NY Posts: 138 Trader Rating: (0) Feedback Score: 0 reviews	Start up Issue -I've Searched all over. Sup Guys, I've searched on here and found that most of the start up issues are just cold start issues, and then the car runs terrible, but my problem is different. This started about 2 weeks ago,The SR cranks fine but wont start unless i give her gas.I changed the Coolant Temp Sensor and the car runs perfectly fine once its started.It may run rich a little but its nothing that really bothers me as i have heard this is common with the E Manage's.I recently got dyno tuned with the issue still being there but even after the tune (which is running perfect now)it's still the same case.I always need to give her some gas to get her started.After that she runs perfectly fine.I've found from causes to be from bad 02 sensors, bad igniter chips and bad injector o rings or MAFS but i want to know if anyone has experienced this and would like to know what they did to solve the prob as i dont have the cash at the moment to be buying a lost of stuff to not fix the problem.(like the coolant temp sensor) I have a Z32 MAFS,255 pump and 550's. The car ran perfectly fine and just out of no where started doing this.Any input on this? Thanks- __________________ True Speed

09-04-2008, 06:17 AM	#2
Sileighty_85 Post Whore! Join Date: Dec 2006 Location: Misawa, Japan Posts: 6,815 Trader Rating: (8) Feedback Score: 8 reviews	Clean your IACV its probably stuck or stickin Run it up pull off the IACV pipe, have some one keep the RPM's stablized and spray Throttle body cleaner down the pipe until you think its good enough. But dont just continusly hose it down spray like 5-7 seconds and let it clear up and then again __________________ 後輪駆動車１番 1989 Built SR GT2871R -363whp 1998 S14 W/RB25- 250ish (For Now) 1986 SR86 - 200ish 1990 R32 GTR - 320hp Don't Buy Engines from JDM-Online http://zilvia.net/f/businesses/207457-jdm-online.html Don't Buy XS-Power or SSAC Shit

09-04-2008, 03:44 PM	#3
TSLegendary Leaky Injector Join Date: Sep 2007 Location: NY Posts: 138 Trader Rating: (0) Feedback Score: 0 reviews	Thanks Sil, I've tried this also and changed the fuel filter to a z32 one but i haven't tried it spraying in 5-7 sec intervals.Going to try this out again.Oh and by the way my valve head cover has a tiny ticking noise into a constant tick but a momentary faint tick, i've suspected its the timing chain and haven't minded it but its been doing that since the problem accrued and my alternator/water pump belt squeeks at cold start.Just looking at random things that may cause it but i am not sure.I will check back on here if there's any other suggestions. __________________ True Speed