Question about 1987 Nissan Maxima
I have a 1987 Nissan Maxima with a V6 and manual tranny. It runs rough (sluggish) when I'm accelerating in every gear. Once I build up rpm in each gear, it smooths out and runs great.
I pulled the ECM and ran diagnostics in all five modes. In doing so, I found that I have stored fault codes (mode 3) 13 and 21. From the research I've done online, I found that 13 is Engine Temp Sensor and 21 is Ignition Signal. In mode 5 (testing Crankshaft Position Sensor, Mass Air Flow Sensor and Ignition Signal) it showed that I had ignition system failure.
My questions is, Will a faulty Engine Temp Sensor and/or faulty ignition terminal cause my rough acceleration condition?
The car is my commuter and has 170000+ miles. But, it seems to still be strong.
SOURCE: How to read the engine
there is a screw on side of the ECM. turn screw counter clockwise all the way and monitor dash board/check engine light on and count the number of flashes on dash board. when you are done turn the screw back into original spot.
Posted on Sep 04, 2011
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