Have a search of the forum for "P1214". There are some recent similar posts that may help. Would be a good Idea to get Actual readings before making any adjustments. eg Top Dead Centre Desired, Top Dead Centre Actual, and Top Dead Centre Offset. Remember to score a mark on the pump and timing cover so you can reverse any adjustments.
If you are technically minded you may want to purchase your own Scanner, I recently purchased a cable from the states to interface OBD II socket with a laptop. Didn't break the bank either!
Cheers
Noel
Noel
1998 (Badge Re-engineered)RHD GM-Holden Chevrolet Suburban K2500, 150k miles, Turbo Diesel 583Nm 200Hp, New 4L80E, 3.73:1, Rebulit T/case with New Housing, standard 245's factory 6.5" wheels. No Mods. Car Code OBDII interface with Enhanced GM data, test & command modes, data logging, live data etc.
Toyota HZJ80 Landcruiser 4.2L Turbo Diesel, 195k miles, 430Nm 210Hp. Mitsubishi Water Cooled Turbo, Through bonnet Intercooler, Advanced timing and increased fuelling, 12 psi boost, Boost gauge and post Turbo pyrometer. 5 Spd Manual.