CEL 21 help - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

fico · 03-28-2007, 09:27 PM

S13 into S13 red top and im getting cel 21
21 - Ignition signal in the primary circuit is not being entered to the ECU during cranking or tuning
anyone know what to do what to check? help?

projectRDM · 03-28-2007, 09:45 PM

Black/white to the CAS, does it show 12volts? Start there.

fico · 03-29-2007, 09:43 PM

any other help?

03-28-2007, 09:27 PM	#1
fico Leaky Injector Join Date: Jul 2006 Location: Akron Ohio Age: 37 Posts: 119 Trader Rating: (0) Feedback Score: 0 reviews	CEL 21 help S13 into S13 red top and im getting cel 21 21 - Ignition signal in the primary circuit is not being entered to the ECU during cranking or tuning anyone know what to do what to check? help? __________________ http://www.cardomain.com/ride/2414198 www.myspace.com/fico1 I't's my car. Nobody said you had to like it.

03-29-2007, 09:43 PM	#3
fico Leaky Injector Join Date: Jul 2006 Location: Akron Ohio Age: 37 Posts: 119 Trader Rating: (0) Feedback Score: 0 reviews	any other help? __________________ http://www.cardomain.com/ride/2414198 www.myspace.com/fico1 I't's my car. Nobody said you had to like it.

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03-28-2007, 09:45 PM	#2
projectRDM Post Whore! Join Date: Dec 2002 Location: Atlanta Age: 51 Posts: 13,812 Trader Rating: (12) Feedback Score: 12 reviews	Black/white to the CAS, does it show 12volts? Start there.