| 86 ASPY Fuel injection Problem | Rate Topic |
| Moderators: redbaron, MDKramer, Flyone, AZgl1500 | Page:   1 2 |
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| Posted: Sun Jan 29th, 2012 06:24 pm | 21st Post |
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I am familiar with these test as they are in the electrical trouble shooting manual and thats why this is Soooooooo puzzling to me. I have the above manual and the SEI service manual supplement and have done most of the procedures I think. Now, My fuel system light does not come on for 2 seconds when I turn on the swictch now and before I bypassed the connections to force power to it, I could not turn it off. I have went from one extreme to the other when it comes to the Fuel System Light. The bike seems to be idling much better but I still have the codes and the fuel system light does not power on and off with the switch now. Man at the gremlins plagueing me on this one. Thanks again for letting me bend your ear. At least I feel like I have some moral support.
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| Posted: Sun Jan 29th, 2012 06:57 pm | 22nd Post |
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When you have a fault indicated on the ECU (TPS), the fuel system light will illuminate and stay on as long as codes are shown on the ECU. I would stop trying to diagnose these issues separatley. Get rid of the TPS fault and the fuel system light will go off as well. Additionally while you may have gone through the tests many times yourself, posting the results of each test step may help find the problem sooner since more people will be thinking about the problem. While I believe the issue to be in the TPS wiring of the bike it's important to answer with all the info you can. Dave asked about the ECU grounds earlier. So back to results of test...?
____________________ "Try to open your mouth a little WIDER when you speak..." |
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| Posted: Mon Jan 30th, 2012 11:21 am | 23rd Post |
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The Fuel system light is OFF and the ECU still indicates a TPS fault. In answer to Daves query regarding the grounds, I did check the ECU at pins 16,34,2 and 20 and all have continuity with the battery ground. Even though the bike is idling better its burning rich to the point where my eyes burn. I remember reading that richness could be a symptom of a faulty PB sensor so with the bike running I disconnected the PB sensors one at a time and when I disconnected PBL, the bike stopped! Using a pair of spare PB sensors that I have, I replaced PBL with the spares and repeated the process. Both times after disconnecting PBL the bike stopped. This may be totally unrelated to the TPS problem but then again I suspect my new PB issue is confined to the harness or the ECU connector. I left it there and called it a day so as soon as I complete this reply I will resume working on the bike. Stay tuned and I'll report later my findings. Thanks again fellas.
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| Posted: Mon Jan 30th, 2012 02:01 pm | 24th Post |
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The TPS fault is set by the ecu when it see's a shorted or open circuit. The ecu sends out a 5 volt reference signal and monitors the RETURN voltage. I'm at work and don't have my schematics available, but I'm sure it's the gray wire. possibly pin number eleven. With the key on, throttle closed, back probe this wire at the ecu (connected). It should read about .5 (point five) volts. If there is no voltage, the circuit is open. That's also why the code is present when you disconnect the switch.
____________________ Libraries are full of stuff I don't know. |
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| Posted: Mon Jan 30th, 2012 02:54 pm | 25th Post |
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You may have just hit the nerve my friend. With the bike NOT RUNNING the voltage on that light green wire at pin 11 is 0.03 vdc with the volt meter on the 20VDC scale. When I rotate the throttle the maximum voltage is 3.65 volts at wide open. I started the bike and the values changed. Engine at idle the values at pin 11 are (-)0.00 to 0.01. What say ye sir?
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| Posted: Mon Jan 30th, 2012 04:56 pm | 26th Post |
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You need to adjust the TPS so the at rest voltage is .48 (point fourty eight) at idle. This is what the ecu is looking for. .03 is so low, the ecu reads it as an open circuit. Full range (wide open throttle) should yield closer to 4.8 (four point eight) volts.
____________________ Libraries are full of stuff I don't know. |
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| Posted: Mon Jan 30th, 2012 06:57 pm | 27th Post |
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Adjustment has been made. 0.05 volts with just the switch on and idleing. The maximum volts is still only 3.67? Got to figure that one out now.
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| Posted: Mon Jan 30th, 2012 07:27 pm | 28th Post |
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Point 5 volts. Not .05 volts....(.48)
____________________ Libraries are full of stuff I don't know. |
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| Posted: Mon Jan 30th, 2012 09:26 pm | 29th Post |
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I am not worthy I am not worthy I am not worthy I am not worthy : Bless you, bless you, bless you! You are the man. Three months Ive been chasing this problem when I had time to work on it and now its time to ride! Thank you all so very very much. She idles great and my ECU gremlins have vanished. Maybe I can some day pay it forward and impart knowlege too. Got to call my brother the owner.
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| Posted: Mon Jan 30th, 2012 09:53 pm | 30th Post |
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cal757 wrote: I am not worthy I am not worthy I am not worthy I am not worthy : Bless you, bless you, bless you! You are the man. Three months Ive been chasing this problem when I had time to work on it and now its time to ride! Thank you all so very very much. She idles great and my ECU gremlins have vanished. Maybe I can some day pay it forward and impart knowlege too. Got to call my brother the owner. That's why glhonda's my HERO!!!!! Problems solved, Treaties negotiated, War's fought, World peace achieved.... It's all in a day's work for my Buddy Mike!!!! 
____________________ Don |
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| Posted: Mon Jan 30th, 2012 10:01 pm | 31st Post |
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glhonda wrote: Point 5 volts. Not .05 volts....(.48) Where ya been dude? Way to go on the fix - that's awesome!
____________________ "Try to open your mouth a little WIDER when you speak..." |
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| Posted: Mon Jan 30th, 2012 10:56 pm | 32nd Post |
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wingsam41 wrote: glhonda wrote:Point 5 volts. Not .05 volts....(.48) I've been waiting for everyone else to exhaust all the other possibilities.... 
____________________ Libraries are full of stuff I don't know. |
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| Posted: Mon Jan 30th, 2012 11:10 pm | 33rd Post |
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glhonda wrote: wingsam41 wrote:glhonda wrote:Point 5 volts. Not .05 volts....(.48) As I said.... My Hero!!!! 
____________________ Don |
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| Posted: Mon Jan 30th, 2012 11:17 pm | 34th Post |
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There is a superman and his name is GLHONDA as I know him Thanks again!
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| Posted: Wed Feb 1st, 2012 11:42 am | 35th Post |
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By the way folks, there is an iphone /ipad app that you can download for free that will direct you to the nearest ETHANOL FREE GAS . Pure-Gas.org is the web site.
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| Posted: Fri Feb 3rd, 2012 01:03 am | 36th Post |
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http://pnplace.com/gl1200/tps/LTD-SEi_TPS_Replacement_with_Honda_Car_TPS_20080603.pdf
____________________ Calif Wingnut 76-2012 Gwrra 353 Life |
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| Posted: Wed Feb 8th, 2012 06:13 pm | 37th Post |
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The Sei TPS is adjustable unlike the LTD. Attachment: DSCF7580.JPG (Downloaded 18 times)
____________________ Calif Wingnut 76-2012 Gwrra 353 Life |
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| Posted: Wed Feb 8th, 2012 06:16 pm | 38th Post |
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Ltd Tps tamper proof. Attachment: DSCF7582.JPG (Downloaded 17 times)
____________________ Calif Wingnut 76-2012 Gwrra 353 Life |
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