AEM Series 2 problems (cranks, no start) - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

dsamani · 09-07-2015, 08:23 AM

To start, I have an S14 with a KA24DE.

Hey, I have been trying to get my car to start but all it does is crank. I have an AEM Series 2 30-6610 and I added in wiring for Pin 46 (Wideband) and Pin 66 (MAP sensor) as per the documentation. When I read the wire directly from the MAF I get 1.6V, however AEMTuner is saying that the MAP voltage is 5.1V. I have power for the MAP sensor tapped off of the TPS, which uses a 5V source. I saw in the docs that I can pull power from the ECU, however I already had it set up this way and I would only need to run one wire.

My wideband also reads an AFR of 10.1 at all times, as if it's ignoring the signal from my AEM Wideband.

Also, my engine load changes with throttle, as per the docs this indicates a problem with my MAP wiring but I can't figure it out.

I verified mechanical cam timing before putting the valve cover on, and I have timed the distributor (remove cyl 1 plug, put cyl 1 in TDC, put distributor back in with dot and groove lined up).

I have verified I have spark by removing the cyl 1 spark plug, touching it to a ground with the plug wire on it, and attempting to start the car.

Help!

09-07-2015, 08:23 AM	#1
dsamani Leaky Injector Join Date: Jun 2013 Location: Miami Posts: 138 Trader Rating: (1) Feedback Score: 1 reviews	AEM Series 2 problems (cranks, no start) To start, I have an S14 with a KA24DE. Hey, I have been trying to get my car to start but all it does is crank. I have an AEM Series 2 30-6610 and I added in wiring for Pin 46 (Wideband) and Pin 66 (MAP sensor) as per the documentation. When I read the wire directly from the MAF I get 1.6V, however AEMTuner is saying that the MAP voltage is 5.1V. I have power for the MAP sensor tapped off of the TPS, which uses a 5V source. I saw in the docs that I can pull power from the ECU, however I already had it set up this way and I would only need to run one wire. My wideband also reads an AFR of 10.1 at all times, as if it's ignoring the signal from my AEM Wideband. Also, my engine load changes with throttle, as per the docs this indicates a problem with my MAP wiring but I can't figure it out. I verified mechanical cam timing before putting the valve cover on, and I have timed the distributor (remove cyl 1 plug, put cyl 1 in TDC, put distributor back in with dot and groove lined up). I have verified I have spark by removing the cyl 1 spark plug, touching it to a ground with the plug wire on it, and attempting to start the car. Help!