Warmed up start up problem.

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240sxvaj
Posts: 2076
Joined: Fri Dec 22, 2006 1:57 pm
Car: 1991 240sx fastback KA-T- SOLD!
1994 MKIV TT-Daily/Track
Location: So-Cal

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Okay guys, i was searching and couldnt really find much. I took my car out for a drive today and just regular driving, came back after couple minutes knowing the car is fully warmed up. i shut off the car and then attempted to start it back up but it wouldnt start, it turns but wont start.

I had similar issue a while back when i first purchased the car completely stock, go it fixed by the previous owner but he never mentioned what he replaced. I'm thinking it's a common nissan issue. any suggestions?

also i recently installed msd blaster ss coil w/hotwire set-up and seemed like it fixed the problem, lasted for about a good week and then it did it again, wouldnt start up after warmed up. i was wondering if it's bad distributor? since after i replaced to the msd coil it seemed to run stronger and smoother without any start up issue.

also i replaced Coolant temp sensor not too long ago(hopefully i dont need another one), other thing i can think of is maf, but i doubt it. sometimes the car idles a little low and seems like it wants to die but doesnt, maybe maf?

BTW car is N/A fully built at the moment w/enthalpy ecu tuned for 740nismo injectors and got dyno w/ good afr for WOT and cruisin. so i know for sure no leaks based from what the shop said and my good vac reading.

Thanks in advance.


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240sxvaj
Posts: 2076
Joined: Fri Dec 22, 2006 1:57 pm
Car: 1991 240sx fastback KA-T- SOLD!
1994 MKIV TT-Daily/Track
Location: So-Cal

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Come on guys, i helped sooo many people out on this forum so do me a favor and help me out.

NateDogg
Posts: 811
Joined: Sat Aug 24, 2002 2:20 pm

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Check your cap and rotor.

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GEO
Posts: 6449
Joined: Mon Jul 07, 2003 3:15 pm
Car: 95 240sx KA-T
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what about alternator? battery?

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1sikS13
Posts: 1697
Joined: Sat Sep 16, 2006 9:58 pm
Car: 1992 S13 240sx

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whats this hot wire setup you speak of?

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240sxvaj
Posts: 2076
Joined: Fri Dec 22, 2006 1:57 pm
Car: 1991 240sx fastback KA-T- SOLD!
1994 MKIV TT-Daily/Track
Location: So-Cal

Post

1sikS13 wrote:whats this hot wire setup you speak of?
It's on the DIY section for better spark. nissanfanatic's thread. buy a blaster ss coil or something similar. buy a basic relay, and wire power directly from battery to relay to ignition coil. really easy install. and gauranteed power notice. ONE of the best install i ever did and shouldnt cost more than $60.

Also not a battery problem, tell me you're being sarcastic. and my alternator is working fine since my afcneo is reading around 13.8volts. strong start and no sign of bad battery, only wont start when warmed up.

HUmmmm.....Caps and rotor......sounds like i might need to replace this.

thanks to everyone so far. keep it coming.....


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