Ok I have done a lot of looking around for this one like any good forum lurker should but no luck.

93 touring

The beeping only comes on then I go above 2000 rpm and stays on I unplugged tac and I can drive it with no beep. I have checked all fluids.

Any ideas?

 

You talking about the RPM beep? Is it an automatic?

 

it is a 5 speed. beep comes on at 2000 rmp and stays on.

 

sounds like the same beep you get if you where to have low coolant

 

Any ideas out there?

 

Check the flowback modulator.

 

It could be the redline beeper that's confused. If so, it could be a problem with the CPU itself.

May be worth finding a good used CPU or finding a friend that you can swap CPU's with to see if that fixes it.

BTW, the CPU is the black box behind the driver's kick panel, NOT the ECU.

I doubt it would be the coolant buzzer, as it would go all the time and the light on the stock water temp gauge would be on. Same for the oil level sender.

Dale

 

Thanks dale ! I will do some looking for a cheap CPU and see if that helps. I will also try to find info on testing flowback mod Is any one has link would be great

 

Would it read a bad code if I had it scanned or if it a rev limiter problem and no way other then changing it out

 

Okay I was taking my car out for a rip bud ! taking it to the a friend to have it looked at. the beeping only started at 3k then moved to 4k. And reset back to 2k when turned off an back on

 

Would that be CPU #2 ?

 

Had to buy a parts car to find CPU #2 did not fix problem

 

Made my problem worse beeping starts at 1000k.

Any ideas would be a big help

 

New CPU #2 now my gage bounces around when I go above 4k

 

The CPU shouldn't effect the tach. Possibly bad wiring and or tach.

 

could it be a bad ground? any one know where the ground is for dash? hoping thats my problem

 

One of the grounds is under the intake manifold on top of the engine. If it is a bad connection, I know the odometer will not operate. Not sure if it affects the tach.

Vince

 

As I recall there are two grounds on the dash harness and they connect to the dash itself with 10mm bolts. Probably hard to get to but if you have a manual it may show the locations.

 

I will go hunting.

 

Not driving

 

Driving

 

With new CPU #2 gage bounces at end of video

 

Don't know if videos are working if not I can add direct Link

 

The weirdest thing is that the beeping stops when the out side temp if above 30c / 86f I have been looking at all the grounds and can't find a loss on or any bad wires am I over looking something simple ?

 

there has to be more than just the beep if its a ground. check all sensors that cause a beep.