Car Running Lean

Bacondoggy

Registered User
no more check engine lights except for the dynamic run test it comes back with 2 codes, saying the O2 sensors are bothe reading LEAN.... well they are both NEW Bosch sensors replaced about 1-3k ago. the engine only has 3 k on it. I do not see or think there is any vac leaks. MAF reads correct on voltage (around .9v) and we tweaked the tps (had to drill out the metal sleeves so we could turn it enough and still have it read .98v) so that is now set. IAC is new from FORD... what else?? injectors looked to be in great condition when I installed them at the engine rebuild, also checked FUEL PRESSURE at startup and that is fine...

HELP lol
 
Have you blown headgaskets since you put in the O2 sensors? Just curious. Also you might have a vac leak hard to say, get some propane and start checking.
 
man I doubt the head gaskets are blown - car runs - or seems to run great, and it has 70k origional, but like 2k on the TOTALLY rebuilt engine...
 
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