Sports light on + shfting problem

Hi all,

I have a 1991 Accord. The sports light comes on when I start the car,
and remains on, though the sports switch is in the 'off' position. The
acceleration of the car from a stop is much slower, and the
transmission is not shifting at all.

Has anyone had this problem? What is possibly wrong?

Thank you,
Fijoy

 

I think it points to a problem in your TCU (transmission control unit).

Find one on ebay and replace it. It's not hard at all.

Here's one. You can pick it up for $60 shipped:

http://cgi.ebay.com/ebaymotors/90-91-ACCORD-TCU-AT-CONTROL-UNIT-TRANSMISSION-COMPUTER_W0QQcmdZViewItemQQhashZitem5883c1409fQQitemZ380167602335QQptZMotorsQ5fCarQ5fTruckQ5fPartsQ5fAccessories

dan

 

It's probably in limp-home mode giving you just two gears.

As Dan has written is might be your transmission control computer. The other
possibility is a faulty sensor that is monitored by the transmission control
computer. It would be instructive to know the code that the TCU
light-emitting diode is flashing. The module itself is probably under the
carpet under your passenger's left foot. It has a small window through which
the lamp may be seen. Don't confuse it with the adjacent engine control
computer.

Do a search in the Honda newsgroups for "TCU." That will lead you to some
details of diagnosis.

 

Even if it's not the TCU, replacing it cause no damage and is $60/hr
cheaper than finding out that's the problem.

 

Thank you all for the responses. I found this page which describes
diagnosing and fixing TCU problems: http://techauto.awardspace.com/transmission.html

Fijoy