Smoke from ECU???
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Smoke from ECU???
I have a 95 Civic Coupe with a 93 JDM H22 in there. Its running on a stock p13 ECU and is running pretty rough and rich so I decided to plug in a chipped p28 to see if changing the ECU would help. I plugged in the ECU and turned the key to the ON position, and as I am looking things over, I see smoke coming from the p28...I quickly unplug the p28 and open the case and there was a lot of smoke coming from there. I plugged the p28 back into my other car that it came out of and it worked fine.
THe p13 also works to when i plug it in, it doesn't smoke or anything. I was wondering what re-wiring is involved when swapping in a JDM h22 into a Civic. I'm wondering if any of the terminal plugs to the ECU had to be rewired...because its weird that the p28 was getting fried and the p13 had no effect.
I also have a question on what can make the car run really rich..I am not too familiar with the H-series motor yet so any input will be appreciated. Thanks
THe p13 also works to when i plug it in, it doesn't smoke or anything. I was wondering what re-wiring is involved when swapping in a JDM h22 into a Civic. I'm wondering if any of the terminal plugs to the ECU had to be rewired...because its weird that the p28 was getting fried and the p13 had no effect.
I also have a question on what can make the car run really rich..I am not too familiar with the H-series motor yet so any input will be appreciated. Thanks
Joined: Apr 2003
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From: Omaha, Nebraska, U.S.A
Re: Smoke from ECU??? (slowsleeper)
there really isnt any re-wiring of terminal plugs with the h swap. You have to add a couple wires (if the civic had no vtec), but thats about it, no complete re-wiring to do at all.
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Re: Smoke from ECU??? (canis)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by canis »</TD></TR><TR><TD CLASS="quote">what chip is in there?</TD></TR></TABLE>
Its just a stock JDM p13 ECU, thats why I thought testing a p28 would work until it started smoking...
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by canis »</TD></TR><TR><TD CLASS="quote">there really isnt any re-wiring of terminal plugs with the h swap. You have to add a couple wires (if the civic had no vtec), but thats about it, no complete re-wiring to do at all.</TD></TR></TABLE>
Its in a Civic EX coupe so has the p28 harness but I don't know whoever did the swap has a whole bunch of wires laying around in the engine bay....I think the motor might have a external coil so some of the extra wires might be for that...
Right now its throwing a CEL for IAC and IAT...Would these 2 sensors make the car run rich though??
Its just a stock JDM p13 ECU, thats why I thought testing a p28 would work until it started smoking...
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by canis »</TD></TR><TR><TD CLASS="quote">there really isnt any re-wiring of terminal plugs with the h swap. You have to add a couple wires (if the civic had no vtec), but thats about it, no complete re-wiring to do at all.</TD></TR></TABLE>
Its in a Civic EX coupe so has the p28 harness but I don't know whoever did the swap has a whole bunch of wires laying around in the engine bay....I think the motor might have a external coil so some of the extra wires might be for that...
Right now its throwing a CEL for IAC and IAT...Would these 2 sensors make the car run rich though??
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