Engine Performance problem
2001 Mazda b3000 6 cyl Two Wheel Drive Manual
Hi, I have a pick up truck Madaz 2001, manual, 81,000 miles, I have problem engines missed fire cylynder # 1 and # 3, but did not showed code for missed fire, Engine showed code P0171 ( Cilynder #1 Bank 1 too lean ).
Sofar I have replaced new coil pack, new spark plug and wire, and new gas filter, also serviced fuel injection, I checked each fuel injection with long scop, I heard it pump and with noid light, it flashed. I also checked spark to spark plus. It 've got spark strongly. Checked all vacuum hoeses did not find any leak, and spay caburator cleaner around intake manifold not any leak, either.
I drove the truck to local auto zone, scan trouble code.
Lean Air/ fuel ratio Bank 1
(cylinder #1 denotes Bank 1)
1 Low fuel pressure
2 Large vacuum leak
3Dirty/defective MAF sensor
4Engine mechanical condition.
Please, some one give me some advice, What 's problem my truck and How to fix it? Thank you
have the same problem?
Saturday, January 16th, 2010 AT 6:01 PM