bad knock sensor
voltage increases when when rpms are increased,faulty voltage regulator or alternator
Yes, at idle it brings the normal stock of 900 up to 1000 rpms
Check your battery, rpm computer controlled.
no more then 900 in park. 750 to 800 is good
don't accelerate as much or change up a gear
Have a certified mechanic replace your throttle cable!
Due to it's an 4 cyl. Mazda 626 2.0 Liters with a low gear change ratio.
Shift it around 4.5k RPM. Don't go under 3k when driving or else you start wasting gas.
Shift it around 4.5k RPM. Don't go under 3k when driving or else you start wasting gas.
Not sure if it's the same problem as my 93 GS, however I changed the PCV valve and that did it for me. About 12 bucks at Crappy Tire. or your local auto parts store.
how many miles on car sounds like you may have slipping clutch if so there is no adjustmants you need to replace clutch assembly
about 12, 13,000 RPMS.