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If this is a diesel engine then adjusting governor to get more speed will destruct the engine. If the vehicle is slow then when the engine is off have someone apply full throttle and see if you can still move the accelerator lever on the pump. If you can either adjust the lever to full throttle stop position or get a new accelerator cable.
An IAC (idle air control) motor is designed to adjust the engine idle RPM
speed by opening and closing an air bypass passage inside the throttle body. The cars computer or PCM
(powertrain control module) receives information from various sensors and will
output signals to adjust the idle air control motor in or out to adjust engine
idle speed by controlling engine idle air. An idle air control motor can fail
one of two ways, either the motor short circuits and stops working or the motor
will develop high resistance and cause the idle air control motor to react
slowly, either failure can cause the engine to
stall at idle. When a trouble
code scan is performed it sometimes won't always detect a failed or weak
idle air control motor.
I have changed the resistor 2 times for the same problem. Its under the hood behind the fan motor insulation. Mine burned because of fan motor frozen & stuck in the winter. Solution is to let the engine warm up before turning the fan on. Cheers, Brian
usually when a car wont iddle it may have a blown head gasket , remove oil filler cap on rocket or tappet cover check for creamy coloured oil , if so blown head gasket , also when morot is cool remove radiator cap and check fro brownish residue under cap if so blown head gasket .
remove each spark plug if one or more of them is white on tip of plug water is getting into cylinder ..
if none of these some carby's or throttle body's have iddle screww which can be adjusted to speed up iddle , or if throttle body it may have an iddle soleniod which may need to be replaced ,
i hope for you is is just and iddle issue , both the solenion and head gasket arnt cheap to fix.
the soliniod although easier to remove and replace its cost is usually .... expensive on most makes of cars , dont know why just because there greedy dealerships !
hope you need only to adjust carby or check timing is o.k
Bank one is the side on a V or H engine where cylinder number one is located. On an in-line engine you only have a bank one, no bank 2. Sensor 3 will be the third sensor from the engine in the exhaust stream.
I did this exact thing.. I see your date of posting is a while ago, however let me know how you ended up.. If you leave the battery connected while installing the relay you can short it out causing the problem all over again.. also there is a couple points that run along that wiring harness that are known to rub through.. let me know how you did!