what cancause high and sporatic revs?

Asked by Mar 07, 2016 at 09:55 PM about the 1996 Mazda B-Series B2300 LB RWD

Question type: Maintenance & Repair

Revs up to 4000 down to 1000 up again. truck is96 mazda b2300

1 Answer


yes...well fuel injected...sounds like a vacuum leak...might be a plugged PCV elbow...fuel pressure regulator (just made that up...let's check) summit racing (my fave)~ http://www.summitracing.com/parts/smp-fpd17? seid=srese1&gclid=Cj0KEQiA6vS2BRDH8dq06YDHz_IBEiQAzNd Bme- YYlurRsWjMGgUlXTQS2_W1yxWb9SHqoVXtjN3nZkaAkWA8P8H AQ

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