Last week my truck started to get the P0441 code: Evaporative Emission System Incorrect Purge Flow. I replaced the gas cap and erased the code.
Then the following day I got code P0430: Catalyst System Efficiency Below Threshold Bank 2. erased that code and soon after got Codes:
-P1174 definition unknown
-P1171 Oxygen Sensor System too lean Fault Banks A&B
-and P0430 again
I erased those codes and the next day I got
-P01174 again (Definition Unknown)
-P0441 again (Incorrect Purge Flow)
-and P0171: System too lean Bank 1
since Monday the truck is giving me a hart time starting. It does start after a 2 or 3, 10 sec tries

 

Replace purge valve first and go from there Whats your milage! Those p1174 and P0171 could be injector related issues. Deal with 0441 first. P0430 is your passenger cats. That can be tesolved later

 

LR03NJ,
Milage is 146K, Just went trough top Job, New Piston rings, Timing Chain, Oil Pump, Fuel Pump, Spark Plugs and Wires. I did not replace the injectors... But as you said; I will try the purge valve first. Thanks

 

Felipe,
Are you aware you can search the Workshop Manual pdf and get the Land Rover Description of the codes?
......

 

Hello,
I Replaced the purge valve, Rear O2 sensors, and fixed few small holes on the exhaust.
I'm not getting codes now, but the hard staring issue still happening when the engine warms up. It starts right away on the 3 ignition attempt no matter if each attempt is short or long.
Any Ideas?

 

Replace CPS

 

Thanks Garry,
Do you mean the Crankshaft Positioning Sensor?

 

yes. Its failing.

 

Good idea, but if that doesn't solve his hard start then I'd suggest that he spray some starter fluid into his air cleaner to see if it starts on the 1st or 2nd try instead of the third try.

If it starts up immediately with the starter fluid then I'd check the fuel pressure valve and fuel pump.

 

I think for some reason, it will be harder to detect errors if any starting fluid will be used before the maf. It might clog the maf if its done at the air filter side. If after the maf, no faster way to spray and install maf to start it up again even if you saturate it, it dries fast. Youll be getting maf codes as well.