BY THE WAY. DO YOU HAVE A CHIPSET IN THE VEHICLE THATS MODIFIED OR AFTERMARKET?
P1212 indicates ICP voltage not at expected level. Check harness for that and voltage to it.
P1248 and p1247 : MAP - Turbo boost pressure low - MAP hose, sensor, EBP sys, intake leaks, turbo
damaged MAP hose
low turbo boost
intake manifold or crossover tube hose leaks
damaged MAP sensor
Inspect MAP sensor hose and manifolds for damage, leaks, restriction and misrouting.
Check all of the BOOTS in the turbo system. See if you can manually actuate the rod in the rear end of it. If not it maybe be carboned up. Check teh exhaust pressure feedback valve and see if thats bad.
All in all this code can be tied back to the harness under the valve cover as mentioned earlier.
Friday, December 11th, 2009 AT 3:47 PM