1990 acura won't start on hot days or when left under the sun.

[programs]

My 1990 acura legend consistently won't start if I leave it under the sun or whenever the temp inside the car is very high, the brake pedal , becomes hard in the upper position, and the car will not start.
My choice is to wait for the temp to cool down late evenings and try again.
Can some one tell me what is going on.
Every day after work, around 5pm, I can leave, I have to wait untill about 8 pm until a cool breeze comes.
PLEASE HELP!!!!

[rmrfun]

do you run super gasoline ifso this gas is more prone to vapor lock on hot days. Try a lower grade gas.

[Bobster0007]

replace your main relay, thats faulty.

[Artie48]

Originally Posted by Bobster0007

replace your main relay, thats faulty.

My apologies. I have also sent you a private message. Could you please tell me :What is a main relay? and how do you replace it or fixit??

Many Thanks

[hondagofigure]

Go to the Honda forum. The third page accordish asked the same question (Main Relay). Adrenalin26 sent a great link to a very detailed site.

[hondagofigure]

P.S.The post by accordish is (92 starting problem) under accord.