Auto -> Manual ECM question
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From: California
Car: '91 Firebird
Auto -> Manual ECM question
Aftering putting a T5 in my car, it runs funny because it thinks it's still in park all the time. Is there a temporary work around for this until I can find the correct ECM?
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From: Dallas, TX area
Car: 91 Formula WS6 (Black, T-Tops)
Engine: 383 MiniRam (529 HP, 519 TQ - DD2K)
Transmission: Built '97 T56, Pro 5.0, CF-DF
Axle/Gears: 4.11 posi Ford 9"
You didn't say which engine, but the prom is what cntrols that. Either get the correct memcal or get into prom burning and fix it that way. It's actually very easy to do....
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Joined: Jun 2001
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From: Charleston, SC
Car: 91 Camaro Vert
Engine: 02 LS1, HX40
Transmission: 2002 LS1 M6
Re: Auto -> Manual ECM question
Originally posted by Faded
Aftering putting a T5 in my car, it runs funny because it thinks it's still in park all the time. Is there a temporary work around for this until I can find the correct ECM?
Aftering putting a T5 in my car, it runs funny because it thinks it's still in park all the time. Is there a temporary work around for this until I can find the correct ECM?
you twisted the two park/nutural wires together.
they NEED to be apart for the car to run right... othewise, it'll stall alot.
just disconnect the two wires from each other, and you should be able to drive around with no other changes.
on mine, i never stripped the wires after i cut them, and i placed them both in electrical tape so that they wont touch each other or anything else.
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From: California
Car: '91 Firebird
Do you mean the wires for the neutral safety switch? I didn't twist them together, I just touch them while I start the car (temporary til I run them to the clutch pedal).
Do I need to do anything with the other wires from the auto? There was a 4 plug connector going to the auto, and now it's just hanging there....
My speedo is working, just a little off though since it's for a 3.42 rear and I have a 3.23.
Do I need to do anything with the other wires from the auto? There was a 4 plug connector going to the auto, and now it's just hanging there....
My speedo is working, just a little off though since it's for a 3.42 rear and I have a 3.23.
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Joined: Jun 2001
Posts: 9,550
Likes: 4
From: Charleston, SC
Car: 91 Camaro Vert
Engine: 02 LS1, HX40
Transmission: 2002 LS1 M6
Originally posted by Faded
Do you mean the wires for the neutral safety switch? I didn't twist them together, I just touch them while I start the car (temporary til I run them to the clutch pedal).
Do I need to do anything with the other wires from the auto? There was a 4 plug connector going to the auto, and now it's just hanging there....
My speedo is working, just a little off though since it's for a 3.42 rear and I have a 3.23.
Do you mean the wires for the neutral safety switch? I didn't twist them together, I just touch them while I start the car (temporary til I run them to the clutch pedal).
Do I need to do anything with the other wires from the auto? There was a 4 plug connector going to the auto, and now it's just hanging there....
My speedo is working, just a little off though since it's for a 3.42 rear and I have a 3.23.
from the T56 swap FAQ at the top of the trans board:
auto to manual part: Wiring
-----------------------------------------------------------------------------
the wiring for the automatic is on the shifter... looking at the automatic shifter, you'll see a big black box on the side... theres a connector on the front.
the wires im reffering to are from this connector.
to plug in the wires to the trans, you will need the proper weatherpack connectors... i got my connectors off a friends trashed engine harness that he was throwing out... you can get yours from a junkyard, or buy the connectors... just be sure to get the ones you need. they're all 2 prong connectors, but diffrent shapes and sizes.
to run the wires to the trans, take the plug thats on your automatic shifter cable... cut a slit from the outside to the middle hole.
slip all your wires thru the slit into the grommet, then put the grommet/plug into its orignal hole... this both solves the thru floor wire problem, and keeps that hole sealed.
the first two wires you will need will be your starter saftey kill wires. they are the two large wires on the connector. you need to extend them to the clutch pedal... where the clutch pedal meets the firewall, there should be a switch. this switch gets pressed when the clutch is to the floor. connect the two wires to this switch.. you must have the clutch in to start the car.
next two wires are your backup lights.
next to where the large wires were on the connector...
early thirdgens(i believe pre 90) have blue and blue with dark blue striped wires. later ones have green and blue wires.
connect these wires to the plug on the pass side of the trans... this will be the only plug on the passenger side of the trans.
the last two wires on the connector are for the ECM... you want to leave them seperated.. not touching each other.. they are what tell the ECM that its in park or nutural... but we want it to think its in gear all the time because its a manual.
-----------------------------------------------------------------------------
the wiring for the automatic is on the shifter... looking at the automatic shifter, you'll see a big black box on the side... theres a connector on the front.
the wires im reffering to are from this connector.
to plug in the wires to the trans, you will need the proper weatherpack connectors... i got my connectors off a friends trashed engine harness that he was throwing out... you can get yours from a junkyard, or buy the connectors... just be sure to get the ones you need. they're all 2 prong connectors, but diffrent shapes and sizes.
to run the wires to the trans, take the plug thats on your automatic shifter cable... cut a slit from the outside to the middle hole.
slip all your wires thru the slit into the grommet, then put the grommet/plug into its orignal hole... this both solves the thru floor wire problem, and keeps that hole sealed.
the first two wires you will need will be your starter saftey kill wires. they are the two large wires on the connector. you need to extend them to the clutch pedal... where the clutch pedal meets the firewall, there should be a switch. this switch gets pressed when the clutch is to the floor. connect the two wires to this switch.. you must have the clutch in to start the car.
next two wires are your backup lights.
next to where the large wires were on the connector...
early thirdgens(i believe pre 90) have blue and blue with dark blue striped wires. later ones have green and blue wires.
connect these wires to the plug on the pass side of the trans... this will be the only plug on the passenger side of the trans.
the last two wires on the connector are for the ECM... you want to leave them seperated.. not touching each other.. they are what tell the ECM that its in park or nutural... but we want it to think its in gear all the time because its a manual.
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Joined: Jun 2001
Posts: 9,550
Likes: 4
From: Charleston, SC
Car: 91 Camaro Vert
Engine: 02 LS1, HX40
Transmission: 2002 LS1 M6
Originally posted by Faded
Ok, I understand what to do with the wires that were connected to the auto shifter. But what do I do with the 4 wires that were plugged into the tranny itself?
Ok, I understand what to do with the wires that were connected to the auto shifter. But what do I do with the 4 wires that were plugged into the tranny itself?
you can leave that hanging.. i zip tied mine in a safe place.
that just controls the TQ converter lockup. it wont set a code or have any effect if left unhooked.
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