CJ dash swap VSS problems. NEED HELP!! - Page 2 - JeepForum.com
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post #16 of 28 Old 01-11-2013, 06:41 PM
Que89YJ
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1989 YJ Wrangler 
 
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Ecu has adaptive memory that retains both faults and some readings from the sensors to use when you drive it the next time. A reset clears it.

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post #17 of 28 Old 01-11-2013, 06:43 PM Thread Starter
moku
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Gotcha... Fingers crossed for when I try it next....
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post #18 of 28 Old 01-11-2013, 07:42 PM
Mark05059
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Quote:
Originally Posted by moku View Post
What do you mean by "zeros the cal"?

It sounds like you have a good handle on how this works... Which is great!
He should.. he helped design it

1998 ZJ 5.2 Auto

1989 Wrangler Black Bone Stock 2.5l 5spd
/l , [____],
|---L--[]lllllll[]-
()_) ()_)==O=)_)
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post #19 of 28 Old 01-11-2013, 07:44 PM Thread Starter
moku
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Say what??!!

That's way awesome!!

So I'll have this thing actually running correctly someday! NICE!
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post #20 of 28 Old 01-11-2013, 08:47 PM
Que89YJ
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Not on the design but on the testing of it. Pin by pin. Circuit by circuit. Voltage current and rf immunity testing. Yes. I tested just about every aspect of the electronics of all the yj electrical.
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post #21 of 28 Old 01-14-2013, 08:15 AM Thread Starter
moku
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After switching the wires and resetting the battery, I took the jeep for a test drive. Exited the highway to a stop and it died. Used throttle during next stops to keep it from dieing since I was in traffic.
what should I do next? Thanks again.
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post #22 of 28 Old 01-14-2013, 08:18 AM
Que89YJ
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Do you still have the code 15?
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post #23 of 28 Old 01-14-2013, 08:45 AM Thread Starter
moku
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No, I dont have a code 15. Didnt before either tho. Any ideas?
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post #24 of 28 Old 01-14-2013, 08:52 AM
Que89YJ
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post #25 of 28 Old 01-14-2013, 10:28 AM Thread Starter
moku
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OK, I'll try cleaning it later this week.

Do you think it's a coincidence that the Jeep ran fine before I changed the VSS? Could having the two wires backwards initially have messed something up?
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post #26 of 28 Old 01-14-2013, 11:24 AM
Que89YJ
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I hate coincidence. If you still have the stock setup to put back in you can go back to it and see if it stalls. The symptoms indicate a bad VSS. You dont need the speedo to try it out. It would be the easiest way to prove it out.
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post #27 of 28 Old 01-23-2013, 08:59 PM Thread Starter
moku
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UPDATE - So it's been a while since I messed with the Jeep. Before I tore into the IAC to clean it, I pulled the connector from the VSS and double-checked what I had done before. I noticed the pins inside the plug were recessed (from the open end) quite a bit and compared it to the distance the pins on the VSS are recessed. It looked as though if they even touched, that they barely did. When had I rewired the plug, I inserted the crimped pins inside the HESCO plug just far enough for them to click and lock (Like I had done with all the weatherpack connectors I used). So I pushed the pins further into the plug from the back, making them barely recessed into the plug when looking from the open end. I inserted the plastic lock/separator into the end and the pins stayed in the new position. I plugged it into the VSS and the thing works great! Apparently, the pins were making contact (since I never got the VSS code) but not enough to work correctly? That's a guess, but it works great now! Problem solved. Thank you to everyone for your help with this!! Now that I figured it out, it's a little embarrasing it was something so easy. So if anyone else is planning to use the HESCO plug, push the crimped pins as far as you can into the plug. They'll lock there..
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post #28 of 28 Old 01-24-2013, 06:27 AM
Mark05059
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Quote:
Originally Posted by moku View Post
UPDATE - So it's been a while since I messed with the Jeep. Before I tore into the IAC to clean it, I pulled the connector from the VSS and double-checked what I had done before. I noticed the pins inside the plug were recessed (from the open end) quite a bit and compared it to the distance the pins on the VSS are recessed. It looked as though if they even touched, that they barely did. When had I rewired the plug, I inserted the crimped pins inside the HESCO plug just far enough for them to click and lock (Like I had done with all the weatherpack connectors I used). So I pushed the pins further into the plug from the back, making them barely recessed into the plug when looking from the open end. I inserted the plastic lock/separator into the end and the pins stayed in the new position. I plugged it into the VSS and the thing works great! Apparently, the pins were making contact (since I never got the VSS code) but not enough to work correctly? That's a guess, but it works great now! Problem solved. Thank you to everyone for your help with this!! Now that I figured it out, it's a little embarrasing it was something so easy. So if anyone else is planning to use the HESCO plug, push the crimped pins as far as you can into the plug. They'll lock there..
thanks for updating the thread and Im glad it was an easy fix.

1998 ZJ 5.2 Auto

1989 Wrangler Black Bone Stock 2.5l 5spd
/l , [____],
|---L--[]lllllll[]-
()_) ()_)==O=)_)
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