mstroker

Is it normal for a 1993 LX 2.3 to stop speeding up at 3k rpm?

I noticed that the engine would not run any faster than that even though the tach red lines at like 4,5k or 5k

Babybudistmonk

Is it shifting right at 3K or are you manually running it through the gears? If your engine wont rev past 3000rpm you definitely have something wrong. Your CEL on at all? Could be anything from a DIS going out, or a bad TPS, MAF, etc. I would play around with it a bit and try to see what it is doing exactly, check the codes both KOEO and KOER tests, and get back with us.

mstroker

the CEL IS on I need to get the code checked then I am assuming

7_Zero

Is this while it is under load, or while free revving?

In my car I can free rev to the red line, but when I am driving and it is under load, it struggles to get past the 3k mark as well.

Babybudistmonk

YES! do you have a code checker? Most people at the local autozone don't really know what they are doing when it comes to these cars. A simple KOEO test isn't that hard to do. Just make sure your engine is at operating temp when it gets checked. A KOER test may give you some other codes to help pinpoint the issue too. Just make sure you find someone who can make sure you do this right.

If you plan on sticking with the EEC-IV fuel injection system, you may want to just buy one of these...

http://www.amazon.com/Equus-3145-For...0787694&sr=8-1

Get the cable for it too. It makes doing the KOER test a lot easier.

Zero makes a good point too. As much info you can tell us about the situation will make the problem much easier to diagnose.

Hope this helps!

mstroker

It only does it while free reving, I thought something was wrong when I was rolling but it does it even in nuetral, So I guesss I will do the test haha

PNYXPRESS

Let me know if you find anything out as mine does the same thing. Wont rev above 3k while in gear and sometimes wont rev above 3k while in neutral either.

mikerp76

my car is doing the same thing. and the tach starts jumping all over the place as well. i am goin to oreilly's to borrow their code reader as the one we use at autozone is only good for for obd2 vehicles.

umangsharma

my car have also the same problem.Car has very low hrs & has consistently had the same problem,-runs good until top speed and cuts out quickly right down to idle speed before stalling.
domain names registration

mikerp76

ok i did the test on my car today. i got 4 codes under the koer test. they area s follows. 412,116,538, and the one i'm not really sure about cyl4. i guess it is saying cyl 4 misfire.