Bad computer possibly?

hypnotix · 03-14-2008, 10:06 AM

Hi guys,
I am new to the board but I am hoping you guys can offer me some help. Two days ago I was driving my truck home from work and the engine light came on and all the sudden my truck misfired for like 2 seconds. The light went off and everything was all good again.. so weird. I figured the spark plugs needed to be replaced so I changed them all, test drove it, and it ran really smooth.

Next morning I leave my house, drive about 5 blocks, the engine light comes on, and all the sudden my truck completely dies instantly. It was as if the electrical just all the sudden went dead. Anyways, I tried to crank it over and it sounded fine except it never fired up.

I was able to grab a code reader and it won't even shoot me over a code. It just keeps cycling and saying "READ" "ERROR" "READ" "ERROR"

I am thinking maybe the computer died? Any ideas?

By the way, I have a 03' PreRunner SR5 V6 3.4L

Thanks!

slammedtaco · 08-12-2008, 06:08 AM

dont know what could be wrong... i have a 2003 with a 3.4 trd supercharger. did the exact same thing. just died. its been at toyota for 3 weeks and they still cant figure it out.the only bad thing is there isnt a replacement computer in the united states for the damn thing. it take 3 weeks to reuild the old one for 1200 bucks. let me know if you ever found the problem

hypnotix · 08-12-2008, 08:29 AM

Hey man. Yeah I eventually did find out what the problem was. Very very strange but simple solution. The ground wire actually fell off the computer

I had checked out so many things however I guess I failed to check that. Took it to Toyota, they looked at it for like a day and then realized the wire fell off. $98 later and she is running smooth again as ever.

I hope your situation is that simple however it sounds like they probably would have already checked that out.

slammedtaco · 08-12-2008, 08:30 AM

ill do that thanks a lot man

ubermx5 · 08-12-2008, 11:56 AM

Check all your grounds.

Also make the battery has 2 grounds. 1 for the body and 1 for frame at the very least.

Would a Mega squite Computer be cheaper?

slammedtaco · 08-12-2008, 12:12 PM

i havent cheaked into one... where can you get one at?

03-14-2008, 10:06 AM	#1
hypnotix Junior Member Joined: Mar 2008, #5274 Posts: 2 03 PreRunner SR5 2003 Double Cab Automatic	Bad computer possibly? Hi guys, I am new to the board but I am hoping you guys can offer me some help. Two days ago I was driving my truck home from work and the engine light came on and all the sudden my truck misfired for like 2 seconds. The light went off and everything was all good again.. so weird. I figured the spark plugs needed to be replaced so I changed them all, test drove it, and it ran really smooth. Next morning I leave my house, drive about 5 blocks, the engine light comes on, and all the sudden my truck completely dies instantly. It was as if the electrical just all the sudden went dead. Anyways, I tried to crank it over and it sounded fine except it never fired up. I was able to grab a code reader and it won't even shoot me over a code. It just keeps cycling and saying "READ" "ERROR" "READ" "ERROR" I am thinking maybe the computer died? Any ideas? By the way, I have a 03' PreRunner SR5 V6 3.4L Thanks!

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08-12-2008, 06:08 AM	#2
slammedtaco Junior Member Joined: Aug 2008, #8486 Location: indiana Posts: 21 2003 tacoma 3.4 trd supercharged 2003 Access Cab Manual 3.4 air ride, supercharged, intake, exhaust,	dont know what could be wrong... i have a 2003 with a 3.4 trd supercharger. did the exact same thing. just died. its been at toyota for 3 weeks and they still cant figure it out.the only bad thing is there isnt a replacement computer in the united states for the damn thing. it take 3 weeks to reuild the old one for 1200 bucks. let me know if you ever found the problem

08-12-2008, 08:29 AM	#3
hypnotix Junior Member Joined: Mar 2008, #5274 Posts: 2 03 PreRunner SR5 2003 Double Cab Automatic	Hey man. Yeah I eventually did find out what the problem was. Very very strange but simple solution. The ground wire actually fell off the computer I had checked out so many things however I guess I failed to check that. Took it to Toyota, they looked at it for like a day and then realized the wire fell off. $98 later and she is running smooth again as ever. I hope your situation is that simple however it sounds like they probably would have already checked that out.

08-12-2008, 08:30 AM	#4
slammedtaco Junior Member Joined: Aug 2008, #8486 Location: indiana Posts: 21 2003 tacoma 3.4 trd supercharged 2003 Access Cab Manual 3.4 air ride, supercharged, intake, exhaust,	ill do that thanks a lot man

08-12-2008, 11:56 AM	#5
ubermx5 Senior Member Joined: May 2008, #6783 Location: Santa Clara CA Age: 32 Posts: 160 98 2.4 5 speed 1998 Regular Cab Manual 2.4 K&N Air filter	Check all your grounds. Also make the battery has 2 grounds. 1 for the body and 1 for frame at the very least. Would a Mega squite Computer be cheaper?

08-12-2008, 12:12 PM	#6
slammedtaco Junior Member Joined: Aug 2008, #8486 Location: indiana Posts: 21 2003 tacoma 3.4 trd supercharged 2003 Access Cab Manual 3.4 air ride, supercharged, intake, exhaust,	i havent cheaked into one... where can you get one at?