CAS issue - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

mattysr20 · 03-10-2013, 06:45 AM

ok well I've searched and can't find the answer I'm looking for. my car has been broke down for months I've made other threads for other issues wich I fixed but still don't have car running. Last night I tested the power sources again I turned key on and had no power to my CAS. Why would I have 0 power? I have changed relays fuses and ecu so I dunno what else would cause this. Maybe I'm not testing it right I just used a test light I have a multimeter but have no clue how to use it lol. any help would be great thanx!

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mattysr20 · 03-10-2013, 11:57 AM

I guess I should add I'm not getting spark or fuel
redtop Sr - stock
91 s13

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KoukiMonsta · 03-11-2013, 11:33 AM

does the ecu light up? is it known to be a good ecu?

power to CAS is the black/white stripe wire. should get 12 volts to that one

mattysr20 · 03-11-2013, 11:59 AM

got the ecu used not 100% sure its good just figured the odds of getting another ecu with same problem was slim I checked that wire and all others and got nothing with key turned on

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mattysr20 · 03-11-2013, 12:00 PM

and no it doesn't light up neither one does

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Con-city_s13 · 03-11-2013, 08:19 PM

Is your ECU properly grounded?

mattysr20 · 03-11-2013, 10:15 PM

I would say yes but how would I know exactly? how does it ground? where is the ground

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KoukiMonsta · 03-12-2013, 09:05 PM

It grounds via bunch of pins.. But I believe it goes to the intake mani. Or near battery. I haven't messed with oem harness in a while.

OrangeVirus1 · 03-12-2013, 09:12 PM

Check your Relays, Check grounds, Check power to the ecu.

mattysr20 · 03-12-2013, 09:42 PM

I dunno how to check power to ecu relays are good

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mattysr20 · 03-15-2013, 10:44 PM

ok I cleaned up all the grounds I could find I also took the top off of the ecu and poked around with a tests light I got power to a few of the pins but I'm not sure what they were also when I touched one of them it made a noise and the red light flashed for like a second but after that when I touched it it didn't do anything still no spark or power to cas so I dunno should I just change all my relays I changed 2 of them the egi and egi pump all fuses are good under hood.

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03-10-2013, 06:45 AM	#1
mattysr20 Leaky Injector Join Date: Apr 2012 Location: ohio Age: 36 Posts: 92 Trader Rating: (0) Feedback Score: 0 reviews	CAS issue ok well I've searched and can't find the answer I'm looking for. my car has been broke down for months I've made other threads for other issues wich I fixed but still don't have car running. Last night I tested the power sources again I turned key on and had no power to my CAS. Why would I have 0 power? I have changed relays fuses and ecu so I dunno what else would cause this. Maybe I'm not testing it right I just used a test light I have a multimeter but have no clue how to use it lol. any help would be great thanx! Posted from Zilvia.net App for Android

03-11-2013, 11:33 AM	#3
KoukiMonsta Nissanaholic! Join Date: Mar 2009 Location: NC Posts: 1,969 Trader Rating: (23) Feedback Score: 23 reviews	does the ecu light up? is it known to be a good ecu? power to CAS is the black/white stripe wire. should get 12 volts to that one __________________ @UpshiftEngineering

03-12-2013, 09:05 PM	#8
KoukiMonsta Nissanaholic! Join Date: Mar 2009 Location: NC Posts: 1,969 Trader Rating: (23) Feedback Score: 23 reviews	It grounds via bunch of pins.. But I believe it goes to the intake mani. Or near battery. I haven't messed with oem harness in a while. __________________ @UpshiftEngineering

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03-10-2013, 11:57 AM	#2
mattysr20 Leaky Injector Join Date: Apr 2012 Location: ohio Age: 36 Posts: 92 Trader Rating: (0) Feedback Score: 0 reviews	I guess I should add I'm not getting spark or fuel redtop Sr - stock 91 s13 Posted from Zilvia.net App for Android

03-11-2013, 11:59 AM	#4
mattysr20 Leaky Injector Join Date: Apr 2012 Location: ohio Age: 36 Posts: 92 Trader Rating: (0) Feedback Score: 0 reviews	got the ecu used not 100% sure its good just figured the odds of getting another ecu with same problem was slim I checked that wire and all others and got nothing with key turned on Posted from Zilvia.net App for Android

03-11-2013, 12:00 PM	#5
mattysr20 Leaky Injector Join Date: Apr 2012 Location: ohio Age: 36 Posts: 92 Trader Rating: (0) Feedback Score: 0 reviews	and no it doesn't light up neither one does Posted from Zilvia.net App for Android

03-11-2013, 08:19 PM	#6
Con-city_s13 Join Date: Jan 2012 Location: Concord, NC Posts: 43 Trader Rating: (0) Feedback Score: 0 reviews	Is your ECU properly grounded?

03-11-2013, 10:15 PM	#7
mattysr20 Leaky Injector Join Date: Apr 2012 Location: ohio Age: 36 Posts: 92 Trader Rating: (0) Feedback Score: 0 reviews	I would say yes but how would I know exactly? how does it ground? where is the ground Posted from Zilvia.net App for Android

03-12-2013, 09:12 PM	#9
OrangeVirus1 BANNED Join Date: Jan 2013 Location: PyongYang DPRK-N. Korea, Province 2 Posts: 1,236 Trader Rating: (0) Feedback Score: 0 reviews	Check your Relays, Check grounds, Check power to the ecu.

03-12-2013, 09:42 PM	#10
mattysr20 Leaky Injector Join Date: Apr 2012 Location: ohio Age: 36 Posts: 92 Trader Rating: (0) Feedback Score: 0 reviews	I dunno how to check power to ecu relays are good Posted from Zilvia.net App for Android

03-15-2013, 10:44 PM	#11
mattysr20 Leaky Injector Join Date: Apr 2012 Location: ohio Age: 36 Posts: 92 Trader Rating: (0) Feedback Score: 0 reviews	ok I cleaned up all the grounds I could find I also took the top off of the ecu and poked around with a tests light I got power to a few of the pins but I'm not sure what they were also when I touched one of them it made a noise and the red light flashed for like a second but after that when I touched it it didn't do anything still no spark or power to cas so I dunno should I just change all my relays I changed 2 of them the egi and egi pump all fuses are good under hood. Posted from Zilvia.net App for Android