Bank1 failure.my guess, those DTCs off a cheap scan tool>? why not post source and real codes, no lie P0301 is real. but off what?real engine: Name.4.7 L
2UZ-FE V8VVT-i variant???
got VVT? IF
ONE SIDE FAILS, misfire there. if cam retarded
. if bad, can be 14deg retarded, (huge)see cam action here.
http://www.mr2.com/files/mr2/techinfo/Random%20FSM%20Data/2uz-History.pdf2003 Tundra. if using a
full real scan tool that sees all toyota extended DTCs , you might see VVT errors, $20 tools and lame autozoned , blind .there are 4 sensors there, id bet there are codes you missed!P0301,3,5, and 7, DTC, ONLY?bad coil packs? no.thats the whole left bank, bad.RF 2-4-6-8
LF 1-3-5-7so, VVT bad on left bank or coil pack , yours has 8 COP coils, so its not 4 bad COPS.a real mech sees all this in 1 second , online, impossiblenor country. sold.\'could the timing belt slip only on one sidedid you do timing belt service, on time, if not, bingo.misfire is
bad compression (vvt?)bad spark , no, not all 4bad fueling, but there is only 1 maf/map, and one full injection rate there so not fuel mix.related. here is a tool (most AZ stores clueless)that reads the enhanced DTC of Toyotas
http://www.amazon.com/gp/product/B001QIUGVI/ref=oh_details_o01_s00_i00?ie=UTF8&psc=1#productDetails using a 1996 tool , misses the boat.but id bet your VVT is bad. left bank.the real tool might help. here.P1349P0011 Diagnostic Trouble Code Discussion for
Camshaft 1 Position Sensor Target Performance P0012 << or this>? P0020/21/22?the FSM shows the manual tests for these VVT parts.