Will only work at a slow speed speed con worked fine the next day dead slow is al it will do

Sounds like the speedometer is faulty. If the speed sensor were the problem, the odometer would not work correctly, the transmission would not shift correctly, and the check engine light would be on.

I had a same problem but worked fine when I installed mackeper. Its easy to remove errors you may have which slowed it. Try it out and let us know the outcome. Here is the download link to it. Good Luck http://bit.ly/1aHCD0n

Check alternator voltage output, might be low. obd2 scanner

Yes Brother, I know that experience. Have a computer test done to find which cylinder is misfiring and replace that fuel injector. It's gone dead and we call this a dead cylinder. Seems like it runs fine, until you hit overdrive. Then it feels like you're running on one square wheel. A steady thump.

This is a case of a failing reel motor. What happens i sthe brushes become aged and wear down and the motor has what they call a dead spot on the Commutator. The motor will work fine at high speeds as the inertia is working for it but when you use a slow speed as in play mode the motor hits the dead spot and stops. You will need a new reel motor in the most likely case- I can service the deck if you want at Skywave Tape Deck Repair Chicago area. I will most likely put a new motor into the deck.

Reverse setting could need checking here sliding valve could have siezed. you would need a service Technition. your default setting is working fine so it needs to be checked on heating mode function.

Check TPS (throttle position sensor located on throttle body) TPS controls 0-60 speed if the spring inside is broke it will not work right.( make work one day and not the next)

THERE WILL BE A DATA TRANSFER RATE PROBLEM IN YOUR LAPTOP ONE OF THE USB PORT.TRY IT ON ANOTHER PORT .IF THAT DIDNT WORK I SUGGEST THE BEST THING TO DO IS TO CONSULT WITH A CERTIFIED TECHNICIAN IN YOUR AREA.IT MIGHT BE A HARDWaRE PROBLEM.IF U FIND THIS SOLUTION USEFUL PLZ RATE IT.
THNXX

I had this problem. In my case it manifested itself mostly in start-up, and I found that I had to move the tonearm past the 1st track to get the TT to spin. I cleaned the contacts on the micro-switch (on the mechanism, from below) with extra-fine sandpaper. It worked.