Now lets see... It doesn't come with a tachometer clearly...So either you purchase a new one, hook it up to a engine management system,Or know where the rev limiter hits a go from ear for the rest of your life. The car is a beast for the most part. I have over 200K miles on mine,have ran it with little to no oil numerously & it still will hang with most older model jettas civic ects. I have a 1.5l. have been 117mph in it, Full on parallel E-Brake parked,Have gone around a turn fast enough for the back end to start coming around (55-65) Too sketchy at 65. Beached it. Trailed it. 93 octane,regular oil changes,head gaskets(2) on a count of high rpms. I'm sure the little thing will keep on chugging for another 200k.
My rpm light came on but not my check engine light so what does that mean when the rpm light is on
Check out the related links for information on the differences between .rpm and .deb packages.
Check idle adjustment (rpm) then check timing, then check for misfire-start there.
Check the cable plug and rpm sensor on the harmonic balancer
Check your vehicle speed sensor. It controls your RPM's and your Speedometer. Hope this helps.
with a rev counter
check your fuel pump.
check for vaccum leaks
check your vacume lines by spraying them down with carburetor cleaner. if the engine revs when you spray you found the leak. also check your air flow meter it could just be dirty.
you should check egr valve and check for a vacuum leak
Check your universal joints for wear.
It shouldn't idle that high the factory idle setting is around 900 RPM's check to make sure nothing is sticking and check vacuum lines. Good luck fixing your problem.