P1211 and P0603 codes have come on after installing superchip

P0300 is a random misfire on all engine cylinders. check for intake manifold leaks. Here is a link to info on P0603 P0603 OBD II Trouble Code

P0603 - Internal Control Module Keep Alive Memory Error

Possible causes- Loose or poor battery terminal connection
- Low battery charge
- ECM/PCM power supply circuit is open or shorted
- ECM/PCM Programing
- Faulty ECM/PCM

P1211 Injector Control Pressure Sensor Above / Below Desired P1249 Wastegate Control Valve Performance
P1211 We all know that this code is commonly caused by "Hot Chips" that are demanding more Injection Control Pressure (ICP) than the High Pressure Oil Pump can deliver. For what it's worth, these are the exact parameters that trigger this code:

• ICP 410psi Higher Than Desired for 7 Seconds
• ICP 280psi Lower Than Desired for 7 Seconds

This code can also be caused by legitimate High Pressure Oil System issues. Below is a list of some of the causes:

• Failed or Sticking IPR (Injection Pressure Regulator)
• Failed or Weak HPOP (High Pressure Oil Pump)
• Any Leak in High Pressure Oil System (o-ring, stuck injector, etc.)
• Low Fuel Pressure (Rare)

P1249 it is the HPOP, above or below pressure, if you have added a performance chip to your vehicle , you will get this code from time to time, basically its Turbo over boost

P0603 = Internal control module , keep alive memory (KAM) error

P1211 = injection control pressure (ICP) not controllable-pressure above /below desired.

Sorry, but I don't have a code definition for P1249.

Hi

Im not 100% here but will give you something to look into. Does the car have a EGR valve?

Secondly check the air mass sensor this could cause multiple codes and make the car splutter.

Is it a diesel? or petrol? if diesel it may have air in the fuel system or a faulty pump. when you done the head did you change the fuel filter, and bleed the system though? only if diesel!, and check the injectors are not leaking, poor water on to each and see if any air bubbles come up. again only if diesel.

Please get back to me if your unsure of anything
Regards
Dan

the 1211 is [injector control pressure sensor above / below desired] the 1249 is[wastegate control valve performance] check the wastegate for proper operation valve not sticking proper lube no leaks or cracked lines and check the wiring and connections to the injector control pressure sensor

P0603 Internal Control Module Keep Alive Memory (KAM) Error

Ford dealer Tech said to check for corrosion on the battery terminals, if
they’re good the check each battery individually to see if all cells are good.
If that still doesn’t solve it, he says to start pin testing the computer ????!!!??

P0603 doesn’t always mean you have a problem, if you are running any kind
of chip, programmer ,etc. you will get that code.

Both a po171 and a po174 are lean codes.Not to say that this is for sure your problem but i have seen several times with the K&N systems where to much oil has been put on the filter and it contaminates the mass air flow sensor.something to try or check.

Code P1211 is 'Manufactured Controlled Fuel & air metering , ICP not controllable, ICP over/under desired value'
The problem regards the electronic injection tune control module, and is quite complex to troubleshoot, here is some hint on what it means.

Loss of power, usually after a hard acceleration; Rough idle; Check engine light comes on, DTC P1211:
Intermittent high pressure oil leakage.
This condition usually occurs when the vehicle is cold and the oil is thick. When performing a hard acceleration, the truck suddenly looses power, the check engine light comes on, and once returning to idle the engine runs rough and won't accelerate. Cycling the key may correct the concern, clearing the code from the PCM will correct it temporarily. If you can monitor data stream, at idle the ICP pressure normally is 400-700 PSI and the IPR duty cycle is 9-14%; at cruise, ICP is 700-1200 pSI and IPR is 15-20%; under normal acceleration, ICP is 1200-2000 PSI and IPR is 20-30%; and under WOT accel, the ICP is up to 3600 PSI and the IPR is 35% or higher. When the above symptom occurs, typically the idle ICP reading will be normal, but the IPR duty cycle will be high--over 20% and up to the max 50%. A "blow-by" condition has occured somewhere in the HP oil circuit. If you can get the problem to re-occur with some frequency, the most probable cause is worn or deteriorated injector or IPR o-rings. If the problem is intermittent, it could be a sticking IPR valve. Replace the injector o-rings with the latest-level kits--F8TZ-9229-AA. When replacing the IPR, make sure you get the correct part for the build date/serial number of your engine.