The idle is controlled by the computer
So any vacuum leaks & the computer is
trying to correct for a lean fuel condition
You may also have several bad cop ignition
coils
My question to you is----you just had a coil or some type
of work done
Why was the truck not properly diagnosed,road tested &
component tested all at one time
That is what I do,until every part of the entire powertrain
is 100%,all data perfect & all driveability issues gone --I stay
with it,once & done
With that I say some shop don't do well or even like fords
Tune up,fuel filter,bad coils,check TPS sensor[RPM].
SOURCE: 95 maxima rough idle
The injector could definitely trigger a misfire code, but you also mentioned that you had a mass airflow sensor code , that code code be responsible for te sluggish moment of the vehicle and rpm going up and down. However if you have a misfire onCyl#6 and the coil and the plug is good the ONLY other thing to cause a mis-fire would be the injector. To check the injector get a NOID light, you can get one at almost any auto-parts place. To use unplug injector plug from the bad injector and connect it to NOID light the light should have a steady PULSE/ligt flickering. If light flickers fine then injector is bad and will need to be replaced. If light doesn't flicker or flickers intermittently then you may have a bad wiring to that injector. Check if wiring is good, then you may have a bad cam sensor or sensor gear. Good Luck and contact if you need more help. Thanks for using FIX YA
SOURCE: rough idle P0300
a faulty MAF will not cause a P0300, just a severe loss of power, look for injector, ignition and intake vacuum leaks as your causes.
SOURCE: 1990 ford ranger 2.3L running rough at idle and while driving
Hi check all the fuse. fi the fuse are ok . remove the coil pack and reverce if the cly missifire change replace the coil if not chage replace the electronic comtrol module ok.
SOURCE: 2000 Lincoln Navigator with rough idling and service engine light
i had the same trouble, there is a rubber boot under the cover on the top of the motor, it is coming from the egr valve, takes about 5 mins to repair and less than 5 dollars.
SOURCE: 2000 Lincoln Navigator - few
P1131 Lack of HO2S-11 Switch ,Sensor Lean
P1151-Lack of HO2S-21 Switch ,Sensor Lean
PO171- System to Lean (Bank 1)
PO174-Systen to Lean (Bank 2)
Fuel Filter -Plugged
Low Fuel Pressure
Evap System -Leaks
Leaks - in ducting,air filter to throttle
PCV -Leaks
Exhaust System -Leaks
O2 Sensors-worn out
108 views
Usually answered in minutes!
×