Have an opportunity on an upgrad to a IC but before sinking money into the upgrade, I need to know if the Ic will drive a 4 wire GM IAC. The wiring connection diagrams (pinouts) do not show the 4 wires needed for a IAC. I use a 4 wire IAC now and know how to set one up and wouldn't run without it. Can the capability of the IC handle it and where can I find firm information on this?
IC Support 4 wire IAC?
JimK
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Have an opportunity on an upgrad to a IC but before sinking money into the upgrade, I need to know if the Ic will drive a 4 wire GM IAC. The wiring connection diagrams (pinouts) do not show the 4 wires needed for a IAC. I use a 4 wire IAC now and know how to set one up and wouldn't run without it. Can the capability of the IC handle it and where can I find firm information on this?
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JimK.
The 1C didnt have enough pins available on the single connector to allow us to provide it, so the 1C does not have 4 wire IAC capability.
The 2C does though.
1C idle control is limited to a 2 wire PWM valve, or an external temp based air bleed.
The 1C didnt have enough pins available on the single connector to allow us to provide it, so the 1C does not have 4 wire IAC capability.
The 2C does though.
1C idle control is limited to a 2 wire PWM valve, or an external temp based air bleed.
Thanks for the prompt reply. Dan in the customer service dept believes it does, but I accept your explanation.
Below is Dans reply to an inquiry.
Upgrade is $425: http://www.034motorsport.com/product_in ... ucts_id=66
And a Ic WILL control a GM 4-wire IAC like the one seen here: http://www.034motorsport.com/product_in ... cts_id=160
Dan Eckerman
034Motorsport Sales
www.034motorsport.com
510-657-6707
Below is Dans reply to an inquiry.
Upgrade is $425: http://www.034motorsport.com/product_in ... ucts_id=66
And a Ic WILL control a GM 4-wire IAC like the one seen here: http://www.034motorsport.com/product_in ... cts_id=160
Dan Eckerman
034Motorsport Sales
www.034motorsport.com
510-657-6707
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Jim, I apologize, that reply is not correct, I have spoken to Dan about it and he knows that but apparently was not thining straight when he fired off that email to you.
As Jarrid has stated, the Ic does not include any built in idle control hardware as the Stage II ECU's do.
Thank you,
As Jarrid has stated, the Ic does not include any built in idle control hardware as the Stage II ECU's do.
Thank you,
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10,615 Posts
It's on the IIc pinout diagrams: https://www.034motorsport.com/Applicati ... STGIIc.pdf
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I have that.. I need to ID the pins on the TPS end of the harness... is there a diagram or are there any markings I can follow @ TPS and IAC Motor connectors?
The harness I have seems to have 2 twisted/shielded cables, one for VR Sensor/Reluctor has 2+shield, one for TPS has only 3wires + shield, not 4 white/____ as described by the pinout diagram.
The harness I have seems to have 2 twisted/shielded cables, one for VR Sensor/Reluctor has 2+shield, one for TPS has only 3wires + shield, not 4 white/____ as described by the pinout diagram.
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I think there is some mass confusion goin on here. None of the TPS wires are shielded, the only shielded wires in the harness are crank and cam position. As described in the pinout the TPS sensor only has 3 wires, purple, yellow/red, and black.
The IAC has 4 white/___ wires, is that what you are referring to? The IAC and it's connector has pins labelled a,b,c,d which are referenced in that pinout I linked.
The IAC has 4 white/___ wires, is that what you are referring to? The IAC and it's connector has pins labelled a,b,c,d which are referenced in that pinout I linked.
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Yes sorry I am asking about both the IAC Stepper motor AND the TPS...
3 of the 4 white/____ wires were found in a twisted/shielded (white wrapper) cable into the harness... there is another Twisted/Shielded wire on the flying lead harness I got with one wire + shield that I assumed is the VR cable...
We stripped it way back and found only 3 wires inside????
Here is the TPS I have, pretty sure it's from AAN. Pinout does not refer clearly to which of these marked 1-2-3-4-5-6 on my TPS pictured, or the connector I got, which fits and has the same 1-2-3-4-5-6 markings... which should I connect to??? I assume from the "034 Connector B" pinout that I will use 3 of them and not use 3 of them, don't know how to guess which ones... :?
6 TPS GND - Black TPS Groung, outside pin = pin # ________???
13 TPS Purple - TPS Signal, usually TPS Center Pin = pin # ________???
20 TPS VCC Yellow-Red TPS Positive to outside pin. = pin # ________???
Also... while I am asking questions, which connector on the IAT and CLT sensors are + or - ??? sensors/connectors not marked that way, MAY have 1-2 on them, maybe it does not matter which way the current flows????.
And should I use the CLT sensor back of the block or in the water mani??? Does it matter?
3 of the 4 white/____ wires were found in a twisted/shielded (white wrapper) cable into the harness... there is another Twisted/Shielded wire on the flying lead harness I got with one wire + shield that I assumed is the VR cable...
We stripped it way back and found only 3 wires inside????
Here is the TPS I have, pretty sure it's from AAN. Pinout does not refer clearly to which of these marked 1-2-3-4-5-6 on my TPS pictured, or the connector I got, which fits and has the same 1-2-3-4-5-6 markings... which should I connect to??? I assume from the "034 Connector B" pinout that I will use 3 of them and not use 3 of them, don't know how to guess which ones... :?
6 TPS GND - Black TPS Groung, outside pin = pin # ________???
13 TPS Purple - TPS Signal, usually TPS Center Pin = pin # ________???
20 TPS VCC Yellow-Red TPS Positive to outside pin. = pin # ________???
Also... while I am asking questions, which connector on the IAT and CLT sensors are + or - ??? sensors/connectors not marked that way, MAY have 1-2 on them, maybe it does not matter which way the current flows????.
And should I use the CLT sensor back of the block or in the water mani??? Does it matter?
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5,375 Posts
6 TPS GND - Black TPS Ground, outside pin = pin # __5___???
13 TPS Purple - TPS Signal, usually TPS Center Pin = pin # ___4____???
20 TPS VCC Yellow-Red TPS Positive to outside pin. = pin # ___6___???
"Quattrocoupe" :
1 - idle
2 - WOT
3 - reference input (for 1 & 2 only)
4 - output = signal = Purple Wire on 034 harness
5 - ground = black wire on 034 harness
6 - voltage input = Yellow/Red
Here is a photo of the wire (twisted 3+ shield) for Idle Motor "IAC" wh/bl wh/rd & white + shield = different than "pinout" chart shows... I will call 034 tech support this afternoon from the shop, sure we can get the thing to work even if I need to add a 4th wire...
I'm pretty sure I have a "VR6" or 6 cyl harness... other side of ecu cable worked fine as it was mostly for coils and injectors + 4 GPO leads...
13 TPS Purple - TPS Signal, usually TPS Center Pin = pin # ___4____???
20 TPS VCC Yellow-Red TPS Positive to outside pin. = pin # ___6___???
"Quattrocoupe" :
1 - idle
2 - WOT
3 - reference input (for 1 & 2 only)
4 - output = signal = Purple Wire on 034 harness
5 - ground = black wire on 034 harness
6 - voltage input = Yellow/Red
Here is a photo of the wire (twisted 3+ shield) for Idle Motor "IAC" wh/bl wh/rd & white + shield = different than "pinout" chart shows... I will call 034 tech support this afternoon from the shop, sure we can get the thing to work even if I need to add a 4th wire...
I'm pretty sure I have a "VR6" or 6 cyl harness... other side of ecu cable worked fine as it was mostly for coils and injectors + 4 GPO leads...
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Doug, the PT engine TPS has a different Bosch number on it, but is externally identical...Hence the difference between Nate's and my pin-outs.
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5,375 Posts
OK then...
Found out that one EGO Wire was also missing, and one was in a pinout marked "not used" on the Pinout diagram. I'll need to move the black wire from 5 to 6 and supply and add another wire to #4 for "EGO 1+ Black/Red EGO signal Output" (o2) signal as it is missing from the harness I got.
I have 5 new wire connectors to add 4 IAC Stepper Motor control to the ECu/Harness. 034 Documentation shows A+ A- B+ B-, Connector is marked A, B, C, D... :curses: :frustrated:
I marked the lock tab that indexes the position of the device to it's wire connector... found one on a 1994 K-Series Blazer in the local Junk Yard
Can anyone reference the pins on the IAC Photo as A+ A- B+ B- so I can wire it up...
Also any coaching on what type of crimping tool to use and how to release the wire I need to move... I don't want to bugger the 23 pin connector.
Found out that one EGO Wire was also missing, and one was in a pinout marked "not used" on the Pinout diagram. I'll need to move the black wire from 5 to 6 and supply and add another wire to #4 for "EGO 1+ Black/Red EGO signal Output" (o2) signal as it is missing from the harness I got.
I have 5 new wire connectors to add 4 IAC Stepper Motor control to the ECu/Harness. 034 Documentation shows A+ A- B+ B-, Connector is marked A, B, C, D... :curses: :frustrated:
I marked the lock tab that indexes the position of the device to it's wire connector... found one on a 1994 K-Series Blazer in the local Junk Yard
Can anyone reference the pins on the IAC Photo as A+ A- B+ B- so I can wire it up...
Also any coaching on what type of crimping tool to use and how to release the wire I need to move... I don't want to bugger the 23 pin connector.
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What brand is the 23-pin connector?
Crimp tool depends on the terminals they sent.
Crimp tool depends on the terminals they sent.
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