KA24E Running rich - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

Got Steeze · 11-22-2014, 03:39 PM

I recently bought a 90 240sx. The previous owner had installed rx7 injectors, an rb20 maf (I think), and ran it on e85 without any tune.

I pumped out the remaining e85, installed new oem injectors, new oem maf/pigtail, and changed the spark plugs (old ones were black).

It still is running rich and misfiring. I have also replaced the thermostat and coolant temp sensor.

I couldn't find a vacuum leak with tb cleaner and have no idea of what to do next.

(also just checked ecu codes)

ECU Codes:
12- Air flow meter circut
13-Engine Temperature Sensor Circuit
41-Air Temperature Sensor Circuit

11-22-2014, 03:39 PM	#1
Got Steeze Join Date: Nov 2014 Location: Nebraska Age: 30 Posts: 1 Trader Rating: (0) Feedback Score: 0 reviews	KA24E Running rich I recently bought a 90 240sx. The previous owner had installed rx7 injectors, an rb20 maf (I think), and ran it on e85 without any tune. I pumped out the remaining e85, installed new oem injectors, new oem maf/pigtail, and changed the spark plugs (old ones were black). It still is running rich and misfiring. I have also replaced the thermostat and coolant temp sensor. I couldn't find a vacuum leak with tb cleaner and have no idea of what to do next. (also just checked ecu codes) ECU Codes: 12- Air flow meter circut 13-Engine Temperature Sensor Circuit 41-Air Temperature Sensor Circuit