2003 camry remote start problems

i am currently dealing with two customers with 2003 camrys.  one of the customers say the vehicle will not remote start on really cold morning .    i caught the tach wire behind the glove box (BLACK/ orange) . both systems successfully learned the tach.  one is a avital 4000 the other viper 160   . i also hooked up a relay for the BLACK / YELLOW second starter on both .  the other customers vehicle will remote start 7 out of 10 times . i sat in his car and remote started the vehicle 3 times but on the 4th time it did not start but the parking lights flashed like it was engaged      please help!!!!!!!!tgs924

Did you use the universal bypass module or the keyless version ?Jeff

Velocity Custom Home Theater

Mobile Audio/Video Specialist

Morden, Manitoba CANADA

try an injector, i ahd the same prob. with a viper 150, when it was cold would'nt start.