| Author |
Message |
James Selevan (Jselevan)
Junior Member
Username: Jselevan
Post Number: 114
Registered: 6-2002
| | Posted on Wednesday, September 04, 2002 - 9:50 pm: | |
Edward has it correct. My 86 TR has three "black boxes" as he describes. They have large, multipin, hinged connectors and are hinden over the wheel wells under the shelf formed by the wheel well and rear quarter panel.
Edward, thanks for the heads up.
Jim S. |
Scott Grossman (Sngsmgaolcom)
Junior Member
Username: Sngsmgaolcom
Post Number: 79
Registered: 2-2002
| | Posted on Wednesday, September 04, 2002 - 7:29 pm: | |
Edward,
Wasn't aware that you could order just that part. When I replaced my coils they came complete with new modules. Live and learn
Thanks
Scott |
Edward Gault (Irfgt)
Intermediate Member
Username: Irfgt
Post Number: 1877
Registered: 2-2001
| | Posted on Wednesday, September 04, 2002 - 7:26 pm: | |
No, Above each coil is an ignition module, it is a black plastic box about 1.5 x 3 inches. The owners manual does not show their existance but they look just like ones on a Mercedes or VW that uses Bosch modules. It is made by Marelli. This is a 1987 TR. If you have one go out and look over each coil and there will be a sheet metal cover with two screws that hide them. Rutlands knew exactly what I was talking about when I ordered it too and they called it an ignition module. |
Scott Grossman (Sngsmgaolcom)
Junior Member
Username: Sngsmgaolcom
Post Number: 78
Registered: 2-2002
| | Posted on Wednesday, September 04, 2002 - 7:03 pm: | |
Edward,
What are you refering to when you say the TR has 3 ignition modules? The TR uses 2 coils, 2 ECUs (control the EFI), and 1 ICU(control coils). From reading your post, I think you swapped coils, and the problem moved with the coil so you got a replacement coil which fixed the problem. Does that sound right?
Scott |
Edward Gault (Irfgt)
Intermediate Member
Username: Irfgt
Post Number: 1876
Registered: 2-2001
| | Posted on Wednesday, September 04, 2002 - 6:42 pm: | |
I had a 1987 TR towed into my shop yesterday that just shut off while driving down the interstate at speed. When trying to start the engine, it would run as long as the key was in the start position but would shut off as soon as you let off the key to the run position. I checked the fuse box and all connections looked like new so I removed the air filter and jumped across both fuel pump relays so the fuel pumps would run constantly. The engine started and ran but was way down on power. I sprayed carb cleaner into both intake ducts and there was no effect on the left side, and a rise in speed on the right. I then checked for spark and had none on the left bank. There are three ignition modules on this TR. A left, right, and a larger central ignition module. I removed the left ignition module from the left bank and swapped it with the right one and reinstalled the fuel pump relays. I again started the engine and to my dismay it started and ran but was still down on power, but this time there was no ignition on the right bank. Problem solved! I ordered a new module from T. Rutlands at 4:30 PM yesterday and had it in my hands at 11:AM today and installed it on the right bank and she runs like a charm. Evidently, the left cylinder bank module activates the fuel pump relays and holds them in through the larger common ignition module after the start sequence. If the right module should fail, the engine will still run on half the engine but a failure in the left module will be a complete engine shut down. Thought you TR owners would like to share in this episode should this ever happen to you. |