86 EFI Turbo computer problems

Mxrdr120 · 03-13-2008, 01:16 PM

I recently obtained a 1986 Toyota EFI Turbo 4x4 (the truck worked fine when last parked). It had been sitting for a little over a year and a rat had done some minor damage to the wiring. After re-connecting all the wires the electonics seem to work and the engine turns over but the fuel pump will not work. I checked the pump and its good. I also noticed the check engine light does not turn on. The local toyota tech is saying it a computer problem. Does anyone have any insight on this before i throw down the 500$ on a new computer? Thanks -Steve

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DN1911 · 03-13-2008, 07:44 PM

500 for a new one......heck i have an 86 turbo ecu that i will sell for $100 plus shipping...e-mail me if you want it. dnogle@ivytech.edu

Mxrdr120 · 03-14-2008, 03:32 PM

Also wondering if anyone could tell me where the ground wire coming from the passenger side of the engine block(parraleling the main battery ground) goes to. I think this might be my problem but i cant seem to find where it connects to.

DN1911 · 03-14-2008, 06:38 PM

not sure if you are familiar with this site, http://www.22rte-trucks.com/simplema...orum/index.php but it is a great resource for 22RET trucks

4Crawler · 03-14-2008, 07:14 PM

Quote:

Originally Posted by Mxrdr120

I recently obtained a 1986 Toyota EFI Turbo 4x4 (the truck worked fine when last parked). It had been sitting for a little over a year and a rat had done some minor damage to the wiring. After re-connecting all the wires the electonics seem to work and the engine turns over but the fuel pump will not work. I checked the pump and its good. I also noticed the check engine light does not turn on. The local toyota tech is saying it a computer problem. Does anyone have any insight on this before i throw down the 500$ on a new computer? Thanks -Steve

Easy enough to make the fuel pump run:
- http://www.4crawler.com/4x4/CheapTri...shtml#FuelPump

DN1911 · 03-17-2008, 11:05 AM

i have the ECU out and ready to ship if you want it, just let me know.

Emt-Iyotaguy · 11-11-2008, 05:13 PM

I know this is an old thread but the ground goes to the intake lower stud and it grounds the ecu so if not hooked up it will not pulse the injectors anyway hope it was fixed before now but if not that should help no need to buy a new ecu

03-13-2008, 07:44 PM	#2 (permalink)
DN1911 Registered User Join Date: Jan 2006 Posts: 53	500 for a new one......heck i have an 86 turbo ecu that i will sell for $100 plus shipping...e-mail me if you want it. dnogle@ivytech.edu __________________ 86' Turbo 4x4 - Work in progress Marlin clutch All-Pro Bed kit Sky rear shock mount 2001 4Runner - Wife's ride.

03-14-2008, 06:38 PM	#4 (permalink)
DN1911 Registered User Join Date: Jan 2006 Posts: 53	not sure if you are familiar with this site, http://www.22rte-trucks.com/simplema...orum/index.php but it is a great resource for 22RET trucks __________________ 86' Turbo 4x4 - Work in progress Marlin clutch All-Pro Bed kit Sky rear shock mount 2001 4Runner - Wife's ride.

03-17-2008, 11:05 AM	#6 (permalink)
DN1911 Registered User Join Date: Jan 2006 Posts: 53	i have the ECU out and ready to ship if you want it, just let me know. __________________ 86' Turbo 4x4 - Work in progress Marlin clutch All-Pro Bed kit Sky rear shock mount 2001 4Runner - Wife's ride.

11-11-2008, 05:13 PM	#7 (permalink)
Emt-Iyotaguy Registered User Join Date: Oct 2008 Posts: 36	I know this is an old thread but the ground goes to the intake lower stud and it grounds the ecu so if not hooked up it will not pulse the injectors anyway hope it was fixed before now but if not that should help no need to buy a new ecu __________________ First rule of EMS if its wet or sticky and it's not yours DON'T touch it. Second rule blood goes round and round air goes in and out enything else is bad. And the last thing to remember if you show up to A MVC after 12:00am and you DON't find a drunk person keep looking cause someone is still missing

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03-14-2008, 03:32 PM	#3 (permalink)
Mxrdr120 Registered User Join Date: Mar 2008 Posts: 2	Also wondering if anyone could tell me where the ground wire coming from the passenger side of the engine block(parraleling the main battery ground) goes to. I think this might be my problem but i cant seem to find where it connects to.

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