I just got this maxima (2001 M/T), drove it for about 45 minutes, now it will not idle. I managed to keep it running with a bit of a shim on the trottle stop screw. I tried the air volume learning, no go, I guess because the idle is not within specs for idle with my shim. I was thinking of just twisting the stop screw, but it still has the factory tamper paint on it, so I wanted to ask first.
The car drives just fine as long as I dont stop.
No warning lights.
warm or cold, same results.
Before you do anything, check/clean your IAC and look for bad/questionable vacuum lines. Neither may kick a light, but they make a huge difference. Also when was the last tune up done? I'm talking a full tune up. It almost sounds like something is warming up after awhile and causing the problem. The IACV usually is one of those things.
I was told the last tune up was recent, which i believe because the filters are all new and shiny. Will be digging into plugs and wires and an oil change next weekend.
You might want to pull the old spark plugs out and check them before you buy new ones. Your cars OEM plug is NGK #PFR5G11 (laser platinum) which cost $10 each. If that's not whats in your engine, or if the ones you pulled out no longer have a gap of .044, get new ones. The only exception is if you have NGK laser iridiums (which are even better) with a gap of .044.
So is the idle too low whether the engine is hot or cold?
So I cleaned all sensors and followed the FSM for checking the idle control. It seems the idle module is bad. So I am going to pull and clean it. Strangest thing happened though... ABS light and check engine light came on AND a code reader will not work!!!
So I took the entire intake apart and cleaned each piece (what is that black scoop/plate that is between the TB and the intake manifold?). After putting everything back together it will idle, but not start unassisted. I took it to a buddy who has a code reader and cleared all codes to see what would pop up. Strangely enough, the car started warm without assistance, no codes until the next cold start.
Again, assisted start-ups are required. I am going to try and do that air learning thing again, now that it idles, I hope it goes through.
Did the air learning, as soon as I reved the engine, got the service light again.
Codes were:
P1320 - Ignition signal primary
P0505 - Air control system
I have read where a bad plug or coil can throw both of these codes. Should I try and relearn again? I was thinking of pulling the plugs and inspecting each for any sign of bad burn.
Please advise.
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