Search results

Took the front cover off, belt obviously heavily cracked. Also checked timing belt timing and it is spot on. Pulled plugs last night, all show lean burn. Next step this morning is to change the fuel filter and check fuel pressure pressure as low pressure could be the culprit. As there are no...

1999 Toyota Tacoma, 3.4L, Automatic, 4X4, 321000 miles. Came in with check engine light on, P0171, bank 1 too lean. Failed Colorado emissions for High NOx. Found both oxygen sensors dead, replaced both sensors, reset check engine light after about 20 miles, had checked MAF and air intake temp...