Custom ECU conversion harness for an........Odyssey?
08-11-2004, 08:29 PM
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Custom ECU conversion harness for an........Odyssey?
I just finished building this for a customer. It's for an Odyssey mini-van equipped with an H22a with automatic transmission, P72 auto ecu, and JO2 (prelude) TCM.
It took forever but it was definitely cool making a custom harness for such an original hybrid!
It took forever but it was definitely cool making a custom harness for such an original hybrid!
08-12-2004, 07:43 AM
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Re: Custom ECU conversion harness for an........Odyssey? (DarkKnight[DMD])
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by DarkKnight[DMD »</TD></TR><TR><TD CLASS="quote">]hmm, I thought Odyssey's were V6's?</TD></TR></TABLE>
The older ones had 2.3L or 2.2L four cylinders.
The older ones had 2.3L or 2.2L four cylinders.
10-04-2004, 09:00 AM
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Re: Custom ECU conversion harness for an........Odyssey? (boomslang)
sorry to bring this back up, just had a question.
Do you even have to use an AUTO ecu, since the TCM is controlling all the tranny functions?
in my brother's 93 civic, i wired up the tcm from a 94 teg, then used a 5spd P30.
When i has the auto P28 in it, it threw a code 19 (TC lockup sol) since the TCM was performing that function instead.
so that begs the question, is there even a difference between the AT and MT obd1 P74s and P75s? Would the AT one throw a code if installed in an MT car?
also, i'm assuming by looking at the 4 obd2 male plugs above (integrated into one big plug), that the obd2 ecu and tcm are combined into one big case ( i think called the PCM).
I was wondering, because I think this is how my 99 V6 Odyssey is.
Do you even have to use an AUTO ecu, since the TCM is controlling all the tranny functions?
in my brother's 93 civic, i wired up the tcm from a 94 teg, then used a 5spd P30.
When i has the auto P28 in it, it threw a code 19 (TC lockup sol) since the TCM was performing that function instead.
so that begs the question, is there even a difference between the AT and MT obd1 P74s and P75s? Would the AT one throw a code if installed in an MT car?
also, i'm assuming by looking at the 4 obd2 male plugs above (integrated into one big plug), that the obd2 ecu and tcm are combined into one big case ( i think called the PCM).
I was wondering, because I think this is how my 99 V6 Odyssey is.
10-04-2004, 12:31 PM
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Re: Custom ECU conversion harness for an........Odyssey? (nuc79)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by nuc79 »</TD></TR><TR><TD CLASS="quote">Do you even have to use an AUTO ecu, since the TCM is controlling all the tranny functions?</TD></TR></TABLE>
Yes.
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by nuc79 »</TD></TR><TR><TD CLASS="quote">When i has the auto P28 in it, it threw a code 19 (TC lockup sol) since the TCM was performing that function instead.</TD></TR></TABLE>
P28's aren't meant to work with a TCM.
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by nuc79 »</TD></TR><TR><TD CLASS="quote">so that begs the question, is there even a difference between the AT and MT obd1 P74s and P75s? Would the AT one throw a code if installed in an MT car?</TD></TR></TABLE>
Yes.
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by nuc79 »</TD></TR><TR><TD CLASS="quote">also, i'm assuming by looking at the 4 obd2 male plugs above (integrated into one big plug), that the obd2 ecu and tcm are combined into one big case ( i think called the PCM).
I was wondering, because I think this is how my 99 V6 Odyssey is.</TD></TR></TABLE>
OBD2 cars don't have TCMs. It's all integrated into the ECU.
Yes.
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by nuc79 »</TD></TR><TR><TD CLASS="quote">When i has the auto P28 in it, it threw a code 19 (TC lockup sol) since the TCM was performing that function instead.</TD></TR></TABLE>
P28's aren't meant to work with a TCM.
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by nuc79 »</TD></TR><TR><TD CLASS="quote">so that begs the question, is there even a difference between the AT and MT obd1 P74s and P75s? Would the AT one throw a code if installed in an MT car?</TD></TR></TABLE>
Yes.
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by nuc79 »</TD></TR><TR><TD CLASS="quote">also, i'm assuming by looking at the 4 obd2 male plugs above (integrated into one big plug), that the obd2 ecu and tcm are combined into one big case ( i think called the PCM).
I was wondering, because I think this is how my 99 V6 Odyssey is.</TD></TR></TABLE>
OBD2 cars don't have TCMs. It's all integrated into the ECU.
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10-06-2004, 06:09 PM
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Re: Custom ECU conversion harness for an........Odyssey? (boomslang)
nice harness work man. real clean, can we see some pics and or hear some driving impressions. 
10-06-2004, 06:15 PM
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Re: Custom ECU conversion harness for an........Odyssey? (blackb18c1eg)
Damn. much props. reminds my of RJ DeVera's mom's 99 Odyssey. painfully-bright yellow, formerly V6-now H22-turbo+nitrous. hella swap, and very nice harness.
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