You need to test your Engine Control Unit (ECU) for fault codes.
This could be caused by several things:
- Coolant Temperature Sensor or circuit
- Intake Air Temperature Sensor or circuit
- A/C Signal circuit
- Power Steering Pressure sensor or circuit.
- Neutral Start Switch circuit
- Throttle Position Sensor or circuit
- Idle Control Valve or circuits
- ECU
You can check fault codes by placing a jumper between terminals E1 and TE1 in the check connector.
(See pictures below) Turn the ignition switch on and count the flashes of the Check Engine light.
If it flashes 2 times every second, this is normal (No codes present). If a fault code is present, the first group of flashes is the first digit in the 2-digit code. There will then be a 1.5 second delay and the second digit will be output. If there is more than 1 code present, there will be a 2.5 second delay, then the nexy code will begin tobe output.
It is recommended that you read the codes (flashes) several times to make sure you are reading them correctly.
http://schematicsdiagram.blogspot.com/2011/12/how-to-adjust-rpm-on-2009-dodge-charger.html
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Engine cuts out at 3000 RPM?
http://schematicsdiagram.blogspot.com/2011/12/engine-cuts-out-at-3000-rpm.html
---------
Cold start problem and vehicle shudder around 2500 to
3500 rpms
http://repairhelpcenter.blogspot.com/2012/10/cold-start-problem-and-vehicle-shudder.html
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High rpm in neutral? Inconsistant high RPM in neutral?
http://technoanswers.blogspot.in/2012/02/high-rpm-in-neutral-inconsistant-high.html
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Jetski
Sputters and Low RPM?
http://whatisbyme.blogspot.in/2012/07/jetski-sputters-and-low-rpm.html
--------
Fuel
Injection Problem And RPM suddenly increases
http://whatisbyme.blogspot.in/2012/07/fuel-injection-problem-and-rpm-suddenly.html
----------
2005 Toyota Highlander: Engine runs hard RPM
below 3000?
http://whatisbyme.blogspot.in/2012/05/2005-toyota-highlander-engine-runs-hard.html
---------
1987 Toyota Camry: RPM Drops going Up hills?
http://whatisbyme.blogspot.in/2012/05/1987-toyota-camry-rpm-drops-going-up.html
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Cruise
Control stops working, Excessive cranks to start the engine and RPM goes max
2500
http://whoisbyme.blogspot.in/2012/07/cruise-control-stops-workingexcessive.html
----------
1990 Toyota 4Runner: Engine cuts off when
reaches 2000 RPM?
http://whatisbyme.blogspot.in/2012/05/1990-toyota-4runner-engine-cuts-off.html
------------
1999 Toyota Camry: Erratic stalling and high
engine RPM at idle?
http://whatisbyme.blogspot.in/2012/05/1999-toyota-camry-erratic-stalling-and.html
---------
1995 Toyota LS: Misfire at idle or low RPM
http://whatisbyme.blogspot.in/2012/04/1995-toyota-ls-misfire-at-idle-or-low.html
-----------
Lexus RX: Tapping noise under Valve Cover At Low RPM?
http://technoanswers.blogspot.in/2012/04/lexus-rx-tapping-noise-under-valve.html
----------
These will help.
Thanks.
http://schematicsdiagram.blogspot.com/2011/12/how-to-adjust-rpm-on-2009-dodge-charger.html
---------
Engine cuts out at 3000 RPM?http://schematicsdiagram.blogspot.com/2011/12/engine-cuts-out-at-3000-rpm.html
---------
Cold start problem and vehicle shudder around 2500 to 3500 rpms
http://repairhelpcenter.blogspot.com/2012/10/cold-start-problem-and-vehicle-shudder.html
---------
High rpm in neutral? Inconsistant high RPM in neutral?http://technoanswers.blogspot.in/2012/02/high-rpm-in-neutral-inconsistant-high.html
-----------
Jetski Sputters and Low RPM? http://whatisbyme.blogspot.in/2012/07/jetski-sputters-and-low-rpm.html
--------
Fuel Injection Problem And RPM suddenly increaseshttp://whatisbyme.blogspot.in/2012/07/fuel-injection-problem-and-rpm-suddenly.html
----------
2005 Toyota Highlander: Engine runs hard RPM below 3000?http://whatisbyme.blogspot.in/2012/05/2005-toyota-highlander-engine-runs-hard.html
---------
1987 Toyota Camry: RPM Drops going Up hills?http://whatisbyme.blogspot.in/2012/05/1987-toyota-camry-rpm-drops-going-up.html
-----------
Cruise Control stops working, Excessive cranks to start the engine and RPM goes max 2500 http://whoisbyme.blogspot.in/2012/07/cruise-control-stops-workingexcessive.html
----------
1990 Toyota 4Runner: Engine cuts off when reaches 2000 RPM?
http://whatisbyme.blogspot.in/2012/05/1990-toyota-4runner-engine-cuts-off.html
------------
1999 Toyota Camry: Erratic stalling and high engine RPM at idle?
http://whatisbyme.blogspot.in/2012/05/1999-toyota-camry-erratic-stalling-and.html
---------
1995 Toyota LS: Misfire at idle or low RPMhttp://whatisbyme.blogspot.in/2012/04/1995-toyota-ls-misfire-at-idle-or-low.html
-----------
Lexus RX: Tapping noise under Valve Cover At Low RPM?http://technoanswers.blogspot.in/2012/04/lexus-rx-tapping-noise-under-valve.html
----------
These will help.
Thanks.
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