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Re: I have code 406 what does it mean?
On youe veicle you have to follow procedures to check O2 sensors
voltage to high more than 3.7 volts
circuit shorted or O2 sensor is no good thats for code 138
code 171 contaminated O2 sensor
406 is your EGR system shorted open thats whats probably causing your O2 sensors to contaminated fix the EGR and clean passage way to intake
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you need to get the OBD codes read , this will guide you to the problem area by giving a code(s) , post these codes and will , hopefully, be able to help further.The OBD can be read by any competant mechanic with the correct instrumentation etc.
Preaty problem you got there but how did u got those codes if it is a 99 you should get a generic obd II code that start with the letter P but try from the basic inspect your plugs and wires and if are those are okay you could have a bad cranck possition sensor but I will suggest you to get a OBD II scaner to see if you can get a generic code
In the old OBD1 system the blinking of 5 5 is telling you that it's the end of the stored codes... you have a 96, you should have an OBD2 port someplace on your van. Go to an auto parts store and have them read your codes for free. Then post that code here.
P0751 Shift Solenoid A Performance or Stuck Off (generic OBD description) P0715 Input/Turbine Speed Sensor Circuit Malfunction
The service manual does not list P0751 as a valid code for your vehicle. You may want to re-check it to make sure you are reading it correctly. Also note that many generic OBD code readers cannot give complete renderings of "manufacturer-specific" codes. You may be getting this code if you are using a generic OBD code reader because there is a manufacturer-specific code present and P0751 is the closest "generic" rendering of the code that the code reader could find.
P0715 is a CIRCUIT malfunction. NO, this does not mean that your transmission needs to be overhauled. This means that either the turbine speed sensor has an electrical failure in itself or the circuits between the turbine speed sensor and the computer are defective. Electrical diagnosis needs to be done.
Please note that BOTH of these codes can be cause by low battery voltage and attempts to diagnose the circuits involved should only be done AFTER verifying that the battery and charging system is working properly.
Where did you get this codes from? They don't seem right, according to your Vehicle year you should have an OBD II computer and all the codes should start with a P###. Visit this site for more info. http://www.obd-codes.com/
This code is for the EGR valve, "P0406 Exhaust Gas Recirculation Sensor A Circuit High", this doesn't necesarily mean you need to change your EGR valve but it's probable. Check with your dealer this just might still be covered.
Insufficient Coolant Temperature For Closed Loop Fuel Control What does that mean?
This means that the engine coolant temperature (ECT) sensor indicates that the engine has not reached the required temperature level to enter closed-loop operation within a specified amount of time after starting the engine. http://www.obd-codes.com/p0125
P0601 OBD-II Trouble Code Technical Description
Internal Control Module Memory Check Sum Error What does that mean?
Basically that means that there is an interal fault in the Powertrain Control Module (PCM). There have been many reported PCM failures on Chrysler/Dodge products although it is possible for this to happen on any vehicle. In Dodge/Chrysler products, a P0601 trouble code means that a serial communication failed inside the computer at least 6 times. http://www.obd-codes.com/p0601