1993 Nissan D21, 4 cylinder, 5-speed, 2wd

I have a problem with cold weather starting. I have to crank and crank before it will start. Starts fine in warm weather. If I hold the accelerator down halfway it starts easier, but not like it should. What could be the problem?

1 thought on “1993 Nissan D21, 4 cylinder, 5-speed, 2wd”

  1. IAC – Idle Air Control and or Engine Temperature Sensor, assuming it is fuel injected. If it is carburated it would be a choke issue.

    You may want to clean the throat of the throttle body and the edges of the butterfly by spraying brake clean on a rag(not into the throttle body itself) and remove any black carbon build up that would restrict air flow when the throttle is at neutral.

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