Not a question. A hard-won answer.
If you have just recently tuned your Altima, replaced the plugs, coil, distributor, etc, and it will turn over, but not " catch", your problem may be the timing. Mine was just a little off, and the vehicle would start, stay running until it warmed up, and then promptly lose spark. I spent a great deal of time looking for bad wiring (there was some, and I replaced it), a bad fuel pump, dirty fuel filter, and just about everything I could think of. It turned out to be a combination of the timing and a very sensitive oxygen sensor. If the timing is off just enough, it will cause the oxygen sensor to shut off the engine. Depending on the vehicle model, your altitude, and a multitude of other factors, the timing should be set pretty close to 20° BTDC. Just a little off and your Altima may die unexpectedly.
Sunday, February 18th, 2007 AT 3:06 PM