Question about 1991 Nissan Stanza
Car is fuel injected with 4 separate injectors, no mixture adjustment. The ignition system checks-out, no MAP sensor on this model either. As mentioned in previous question, the car is running too rich, idles too slow, and knocks-off when put in gear. Timing is good and compression is excellent. If I can, will dig out ECM and run diagnostic to see if there's a sensor failure and pray it doesn't cost TOO much. Have tech manual on the way. For some reason parts and info for this particular Nissan either are hard to get or have to be ordered and take a while to get. Dealers=OUCH!
Tips for a great answer:
Dec 10, 2015 | Ford Cars & Trucks
Oct 01, 2013 | Toyota Corolla Cars & Trucks
Jan 22, 2013 | Cars & Trucks
Here's what we think may be wrong with your car and what may be causing it. The list goes from the most likely problem to the least likely. Check out our Product and How To pages or the Vehicle Repair Guide for your vehicle (if available) for more information about particular parts.
Keep in mind, this is a general diagnosis. Your car may not have the parts we list as potential problems. If you're not sure if your car has a particular part, check your owner's manual.
--> Smells Like Change Symptom: Sulfer Change When: Engine Idling Change Where: Engine Exhaust Change -->
Priority Action Part Type Cause 1 Inspect OXYGEN Sensor Damaged or Faulty OXYGEN Sensor or Circuit. 2 Inspect Catalytic Converter Clogged or Faulty Catalytic Converter. 3 Inspect Fuel Injector Pressure Regulator Faulty Regulator/Weak Spring Causing a Rich Fuel Mixture. 3 Inspect MAP Sensor Faulty or Disconnected MAP Sensor Causing a Rich Fuel Mixture. 3 Inspect Coolant Temperature Sensor Faulty or Disconnected Coolant Temperature Sensor Causing a Rich Fuel Mixture. 4 Inspect Carburetor Incorrect Carburetor Adjustment. 5 Inspect PCV Valve Plugged or Damaged PCV Valve.
Jul 21, 2012 | Cars & Trucks
Oct 03, 2011 | 2002 Chrysler PT Cruiser
Aug 05, 2011 | 1995 Chevrolet Blazer
Dec 28, 2010 | 1994 Honda Accord
Oct 22, 2009 | 2007 GMC Acadia SLE
Jan 15, 2009 | 2001 Ford Windstar
Dec 03, 2008 | 1999 Ford Taurus
114 people viewed this question
Usually answered in minutes!
Step 2: Please assign your manual to a product: