Tom130

Ok,, bought a nother ecu,,, 89661-50303, does it have to be programed ? the 303 is what the car calls for .

has fule,, (had fire) ( but seam to be at the wrong time) when i put another computer in the car,,,,,,,,,, i put the old one back in and i had NO fire,, duh,, i guess i got a bad computer,,, but did not think it would make it back fire, p.s. i know no one on here knows me on here,, but ,,, in my life,,, i have built every thing from briggs engines to some that you can walking around in LOL,,, but i do thank you for your reply... :)

It is not the battery, the battery is really hot,,, spends the engine really good,,, installed the new, (used) computer and now it just backfires ,, trys to start but want,, reinstall the old computer,, and now it will not hit a lick :( the computer it had in it was a 89661-50303 replaced it with a 89661-50341 95 to 97 the 50303 is for a 96,, the 50341 is for a 97,,

i have a 1996 ls400,, when to wal-mart,,, running fine,,, came out and it will not start. it spends over just fine,, has plenty of gas,,, had a computer put in about 2 months ago,, after a while, with in the last 2 months, the tack started reading 1/2 of what it should,, speedometer stopped, hit dash and it came back on lol,, had to car towed to a mechanic, he said he thought the computer was bad, i bought one,, and now when you try to start it,, it backfires and suptters, but still want start. computer it had was a 89661-50303, i replaced it with a 89661-50341, 95-97, the 341 is for a 97. do they have to be programed or something ?? or and do ls400 ever jump time when you turn them off? it has almost 300,000 miles on it,, dont use a drop of oil,,, but does suck the power steering fluid out. i know the valve on the pump is bad, and will replace it,, but what is the best guess of why it will not start,, i even waited till the next day and tryed to start it,,, but no luck,, spends over great,, but now,, after replacing the comuter,, is that what is cause it to now back fire ??

need help,,, first day here,, i have a 1996 ls400 will not start.. cant find where or how to post this question