Help! 1988 Toyota Pickup
04-13-2015, 02:12 PM
#11
Registered member
Join Date: Sep 2003
Posts: 1,493
Likes: 0
Received 0 Likes
on
0 Posts
Re: Help! 1988 Toyota Pickup
I found another pic of a 1988 pickup. You can see the diagnostic cover and where it is located relative to the fuse box in your pic and the finned part on the inside of the fender. Hope this helps. Looks like yours is missing.
04-13-2015, 05:07 PM
#12
Hi
Thread Starter
Join Date: Aug 2008
Location: Va Beach_757
Posts: 2,261
Likes: 0
Received 0 Likes
on
0 Posts
Re: Help! 1988 Toyota Pickup
It may be a dumb question, but would the truck run if that connector has been cut out? And if it was originally carbureted, the harness wouldn't be there, correct? As its only for the EFI? Only reason I mention the carb is because of the dead ended hoses with what looks like two fuel filters connected?
04-14-2015, 04:30 AM
#13
Racetracks
Join Date: Nov 2002
Location: How long is a piece of string?
Posts: 15,668
Likes: 0
Received 0 Likes
on
0 Posts
Re: Help! 1988 Toyota Pickup
Yeah, there would be no need for a diagnostic port for a carb'd setup, because there is no ECU to drive the fault logic and nothing to sense really.
Was that an option for the 88 models, and could you find the original engine spec from the VIN plate?
Was that an option for the 88 models, and could you find the original engine spec from the VIN plate?
04-14-2015, 04:49 AM
#14
1UZ Inside
Join Date: Aug 2003
Posts: 217
Likes: 0
Received 0 Likes
on
0 Posts
Re: Help! 1988 Toyota Pickup
Post # 7 has a pic of his engine so it is EFI. Even if it is an EFI swap, The diagnostic port is part of the EFI engine harness and should have been carried over with the swap. It may have been cut, if so, the "easiest" way to pull the code is to remove the ecu and open it up. On the circuit board near the harness connector plugs you will see that each terminal is labeled. Find the terminal label " T " or " Te" and then find the corresponding wire the goes to that terminal. Splice in a long lead to the wire and when you ground it the ECU will flash the code.
04-14-2015, 05:17 PM
#15
Hi
Thread Starter
Join Date: Aug 2008
Location: Va Beach_757
Posts: 2,261
Likes: 0
Received 0 Likes
on
0 Posts
Re: Help! 1988 Toyota Pickup
Post # 7 has a pic of his engine so it is EFI. Even if it is an EFI swap, The diagnostic port is part of the EFI engine harness and should have been carried over with the swap. It may have been cut, if so, the "easiest" way to pull the code is to remove the ecu and open it up. On the circuit board near the harness connector plugs you will see that each terminal is labeled. Find the terminal label " T " or " Te" and then find the corresponding wire the goes to that terminal. Splice in a long lead to the wire and when you ground it the ECU will flash the code.
04-15-2015, 03:32 AM
#16
1UZ Inside
Join Date: Aug 2003
Posts: 217
Likes: 0
Received 0 Likes
on
0 Posts
Re: Help! 1988 Toyota Pickup
Yep!
Also, you could permanently ground the lead and install and switch/button inline. Then you could activate the diagnostics at the flip of the switch at any time.
Also, you could permanently ground the lead and install and switch/button inline. Then you could activate the diagnostics at the flip of the switch at any time.
Last edited by YOTARIP; 04-15-2015 at 03:38 AM.
04-15-2015, 05:08 AM
#17
Hi
Thread Starter
Join Date: Aug 2008
Location: Va Beach_757
Posts: 2,261
Likes: 0
Received 0 Likes
on
0 Posts
Re: Help! 1988 Toyota Pickup
04-19-2015, 02:42 PM
#19
Registered member
Join Date: Dec 2009
Posts: 681
Likes: 0
Received 0 Likes
on
0 Posts
Re: Help! 1988 Toyota Pickup
I recently bought a 88 Toyota pickup and just finished swapping the blown motor with another 22re. It has a hard start but does start and runs strong. My issue is while im driving. It feels like it has no power! I can floor it and it goes no where! It is throwing a CEL but I cant find the check connector anywhere! I set the timing with a light and by ear since I couldn't find the connector to jump it. Im sure the timing is off a bit but I feel like its a vacuum issue. If I turn the wheel all the way to one side, the truck shuts off.
04-19-2015, 04:49 PM
#20
Hi
Thread Starter
Join Date: Aug 2008
Location: Va Beach_757
Posts: 2,261
Likes: 0
Received 0 Likes
on
0 Posts
Re: Help! 1988 Toyota Pickup
No chain rattle. It has a valve tick, but what 22re doesn't??
I was able to check the code which was code #12, Engine speed (rpm) sensor circuit. I set the timing the proper way and it drove a little bit better but not much. I started pulling spark plug wires to see what would happen. If I pulled #1 or 4, the engine shut off. If I pulled #2 or 3, nothing happen. My brother got shocked on cylinder 3. That's as far as we got before the rain came. What do yal think?
I was able to check the code which was code #12, Engine speed (rpm) sensor circuit. I set the timing the proper way and it drove a little bit better but not much. I started pulling spark plug wires to see what would happen. If I pulled #1 or 4, the engine shut off. If I pulled #2 or 3, nothing happen. My brother got shocked on cylinder 3. That's as far as we got before the rain came. What do yal think?