My 97' WRX import keeps hittong around 4 1/2 5 thou revs and chugging as if it wants to go but something is not letting it! It doesnt happen all the time but very annoying when it does. Its had the limiter taken off when it was imported and only has V-power fuel in it.

Any input and advice will be greatly welcome!!!!

Cheers

 

Sounds like the MAF sensor,had a similar problem with mine only happens once in a while.

 

check your coil packs

 

As above. mate having same sort of problem.

Lee

 

What are these?

 

On phase 1 engined scoobs each spark plug has a coil pack on top of it. The ECU triggers a 12 volt pulse to each coil as a spark is needed, the coil turns the 12 volts into the many thousand volts needed by the spark plug to give a spark.

The coil packs tend to break / crack with age effecting their ability to generate the voltage for the spark so closely inspect each one for damage.

 

Cheers all, will have a look at all suggestions while at work (have a lift, tools and the likes!)