kblast523
New Member
- Joined
- Apr 23, 2021
- Messages
- 13
- Reaction score
- 1
- Points
- 3
- Location
- Howardwick, Tx
- Vehicle Year
- 1996
- Make / Model
- Mazda B2300 SE
- Transmission
- Manual
Purchased 1996 Mazda B2300 SE in October, cheap. It had 155,209 miles showing on odometer since Feb 2009 according to Carfax. Tires are 50% dated 48th week of 2017 (Hankooks).
Began by replacing all hoses (all factory) thermostat, water pump, serp belt, all pulleys, ps pump and lines, plugs, ,plug wires, TPS, MAS, timing belt, timing belt idler, spark plugs and wires, Cat converter, up and downstream O2 sensors, valve cover gasket, oil and filter, fuel filter and hung air freshener on the mirror. Flushed mud out of block, radiator and heater core. Even replaced battery and fixed ground connection that was gnarly.
It started and ran, barely. It would run just fine above 2000 rpm. Had (as I recall) about same amount of power on highway as my 1988 with the same engine did. Won't idle.
Replaced fuel pump on diagnosis of low fuel pressure from a certified ASE mechanic. No change. Put a different MAS on it from a know running vehicle. No change. Replaced fuel injectors. Slight change in hp, still not idling correctly. It'll rev to the moon, but below 15-1800 rpm gutless. Timing checked by four different mechanics and all report the marks are lined up.
Anybody have any suggestions?
Began by replacing all hoses (all factory) thermostat, water pump, serp belt, all pulleys, ps pump and lines, plugs, ,plug wires, TPS, MAS, timing belt, timing belt idler, spark plugs and wires, Cat converter, up and downstream O2 sensors, valve cover gasket, oil and filter, fuel filter and hung air freshener on the mirror. Flushed mud out of block, radiator and heater core. Even replaced battery and fixed ground connection that was gnarly.
It started and ran, barely. It would run just fine above 2000 rpm. Had (as I recall) about same amount of power on highway as my 1988 with the same engine did. Won't idle.
Replaced fuel pump on diagnosis of low fuel pressure from a certified ASE mechanic. No change. Put a different MAS on it from a know running vehicle. No change. Replaced fuel injectors. Slight change in hp, still not idling correctly. It'll rev to the moon, but below 15-1800 rpm gutless. Timing checked by four different mechanics and all report the marks are lined up.
Anybody have any suggestions?