Red lining in drive!!!

[Chatmanboy]

Going about 60mph on the freeway in drive my car red lines and doesnt switch gears or something... but in over drive it rides fine! could this be a transmission problem? if not what could it be?

 

[BRAD_PADGETT]

I would start be adjusting the TV cable first. The link is for an 86/87 but the system is identical to the 84/85. The D shaped tab or button is on the throttle body bracket-driver side by the fire wall. keep us posted. Brad

TV Cable System

 

[notacarlo]

What are you using to reference RPM? The digital tach on the instrument panel is notorious for reading incorrect after 24 years. Mine said I was 1500 rpm over what my a/m tach said.

But I think you are saying that on the highway it wont go to overdrive. So I assume it will go into o/d when you back off the pedal?

Follow adjustment as described above first.

 

[Chatmanboy]

The original tach and I have an aftermart tach.

While I'm on the freeway in drive and I reach about 60mph the tach is high in rpm and runs hard. Sound like it needs to switch gears but doesn't. Then When I shift to overdrive the rpm goes down and it runs smooth

 

[Chatmanboy]

I tried it but i didnt get a chance to drive it yet. although when it says it suppose to rachet back when you go WOT it didnt. So Brad do u mind checking to see how many ridges is out on your so i can get an idea on where it should be. If you get a chance. Also i was meaning to ask you about the wideband O2. Does that work good with a scanmaster or just a powerlogger? Because i was plan on buying a Wideband AEM Gauge Type UEGO from TurboTweak...

 

[BRAD_PADGETT]

Sometimes you do not hear the ratchedsounds. Pushing the gas pedal set the cable. Play with it and test and retest. I am very happy with the wideband setup. I put the sensor on the test pipe and ran the wires under the console and to the powerlogger block. You have to buy a powerlogger and a special 6.0 TT chip.The scanmaster reads the wideband but I do not use it at all for this. I set the chip for the A/F ratio targets and test. The powerlogger records runs for diagnostics. Remember-The wideband only comes into play at WOT and makes tuning very easy. I will not be able to look at my car until Monday though for the cable setting. Brad

 

[Chatmanboy]

Ok. but will i be ok with getting that without the powerlogger and the new chip? because i just got that street chip and scanmaster and dont want to spend that much for two thing now due to the fact im about to get a ta33c... So if i can get away with this setup with the wideband that would be cool... so what you think?

 

[BRAD_PADGETT]

There is nothing wrong with putting the wideband o2 sensor on and the gauge. I do not have any experience using a wideband sensor for tuning with your setup.This makes my ability to comment severely limited. I waited and went with the powerlogger, TT6.0 chip and wideband O2 for simplicity and ease of tuning. This way is expensive-$550. Brad