could be a number of things, but i would try cleaning the throttle body and MAF sensor. mine started to do the same thing and a good cleaning solved the problem. make sure to use the correct cleaner as carb cleaner can damage the plastic and the MAF.
A PCV or connecting hose problem can cause great issues with a 1997 Nissan pickup idling. In fact, this can keep it from running, even if it does start, and the engine turns over.
The IDLE is controlled by the computer. THERE IS NO ADJUSTMENT.
Idle is automatically set by the computer with the use of an idle motor.
More times than not, it turns out to be the TPS sensor
I HAVE THE SAME VEHICLE AND HAD THE SAME PROBLEM... THERE IS A SERVICE BULLETIN FOR THE IDLE AIR CONTROL VALVE. THAT SOLVED MY INTERMITANT HIGH IDLE.
There is no adjustment, the idle is controlled electronically. If you have idle problems you may have a vacuum leak somewhere.
belt is loose.
The fast idle-speed on a 1994 Nissan D21 pickup is adjusted by turning the screw on the side of the throttle body. It increases the speed of the engine when the vehicle is idle before completely warming up.
high idle problem on a 1997 sc1 when car is in gear
The idle is automatic. If the speed is not corect then you have to fix the problem with the idle motor.
replace the ecm
check for vaccum leaks
The 1989 Chevrolet S 10 pickup idle control valve is located on the side of the engine. You will find the valve below the fuel injector pump.
Your car may fluctuate in idle while applying the brakes due to a problem in the computer. Everything in cars nowadays is regulated by the ECM(Electronic Control Module). A few simple diagnostics tests done by a certified tech can tell you what exactly the problem is. You may also have a bad power brake vacuum booster, this would effect the engine idle when the brakes are applied.
vacumm leak problem.
On the drivers side of the throttle body. Mine is to the rear of something that looks similiar and both have flanges with two screws holding them on with wires connected.
There is no idle adjustment. The idle is adjusted electronically by the ecm. If you have a problem with the idle you may have other issues like a vacuum leak.
Idle is computer controlled, there is no adjustment screw.
You should check your spark plug wires. That's gonna be it
is this happening when car is at idle? the indicators use power so sometimes at idle the amp meter will fluctuate because of this. if this is happening when driving i would have alternator and battery checked
Have you tried turning the idle adjuster screw on the intake manifld. I had a problem with a 93 pickup shortly after a tune up. It seemed to result from the tune-up but after a lot of frustration I foung a leaky fuel line that was "sucking" air at low idle, causing a slower rough idle.
u cant its computer controlled needs a idle air control
The idle control solonoid probably needs cleaning. Remove it from the throtle body and clean it.