My 97 Pathfinder, 100,000 miles, had the light come on back in August. Took it to the dealer, they said "shows a misfire on cylinder #1, but we cannot find anything wrong", charged me 60.00. It was going on and off, now is on all the time since probably January. Seems to run fine, same mileage, maybe a little longer crank time to start when it is warm. Don't want to take it back to the dealer for another 60.00 checkup. I have been doing some searching, I will try and reset the light and pull any codes. I am not familiar with the codes, but I will try and get it and report back here, as I am sure someone can tell me what it is-thanks for any input
engine misfire and lean codes are often set for fuel reasons... my car ran perfect but on ocasion id try and save money at the pump with 87 "getty" fuel and it would set the light off, a nissan machnic friend of mine told me it happens alot because of poor fuel, theres no need to run 93 but during the winter especially gas has extra aditives in it that lower the quality, he also suggested to get gas from mobil or hess stations rather then ur "arab" mart (no offensense ment), u should probably check ur plugs for indications of lean burn and replace, throw in a bottle of injector cleaner or have them sonic cleaned at a shop for 70 bucks, if it pursists try a higher octane and have ur ecu cleared of all codes as they are stored in some models after the light goes out.. luck
my maxima did the same, sry to be lazy but i did a post that applied to this ques. too, i tryed to take out what didn't apply to u, oh and check or replace ur gas cap, idk what code it is exactly but a faulty or non tightened gas cap can set a fuel sys code
by the way, in my area a large local parts store chain (autozone) will check ur ecu and list out the codes in words and reset ur cel free off charge, a service i use 3 times a week when i'm tuning, without any complaints, ask ur local stores to see if they offer the service
and check for a possible fouled plug or bridged gap, replace em cheap
Last edited by DylanDET1 : May 1st, 2006 at 07:42 PM.
Interesting, but the vehicle runs great, no difference in mileage or performance, is a bad converter common on these things? Also, I wanted to try and reset the ECU SES light, but cannot find the screw-is it on the top?
Yes, the screw is on top. Helps to use an inspectors mirror to find it the first time. Also, mine was covered with clear tape that had to be removed to turn it.
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1997 Pathfinder XE
Air Lift Air Bags, Warn Hubs
Ya, its kind of a pain fishing your arm up through your break petal, through all the other junk, and bending your wrist around so its on top of your ECU, and its a pain to break the clear seal on top, AND its hard to tell if your actually turning the screw, but it is possible, it kind of helps to have a second person there to watch your SES light, because it will flash telling you the code. The whole process should be in your manual.
After two fun, expensive episodes of replacing mass airflow sensors, I have a SES light on. Dealer says "just tighten the gas cap, it'll go off". Right. Is there a simple, graphic explanation of how to turn this thing off. I'm ready to cut wires, etc. I hate that SES light, but I'm prepared to be sensible. Please help; just discovered this forum tonight.
Linear Mode
