My melted P28 ECM
Member
Joined: Nov 2003
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From: 92127
Re: My melted P28 ECM (brookliner7)
If the failure is localized to that capacitor, I would assume an internal failure within the capacitor. If the circuit board is not burned too badly, it will be a fairly straightforward repair.
Joined: Sep 2004
Posts: 209
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From: Mississauga, Ontario, Candaa
Re: (brookliner7)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by brookliner7 »</TD></TR><TR><TD CLASS="quote">board looks burned on back too....hmmm
</TD></TR></TABLE>
wanna sell it i need some parts off it...
</TD></TR></TABLE>
wanna sell it i need some parts off it...
Member
Joined: Nov 2003
Posts: 2,274
Likes: 3
From: 92127
Re: (kazino42)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by kazino42 »</TD></TR><TR><TD CLASS="quote">Looks like you put the chip on the wrong way. The notch is suppose to go the other way.</TD></TR></TABLE>
Good eye
If you have applied power to it, consider that chip smoked. The Mugen program is generally junk anyway.
I usually charge around $40 to reconstruct the PCB when there is a burn-through.
Good eye
If you have applied power to it, consider that chip smoked. The Mugen program is generally junk anyway.
I usually charge around $40 to reconstruct the PCB when there is a burn-through.
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Honda-Tech Member
Joined: May 2002
Posts: 3,672
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From: With my POS D15B2, Whereever whenever, United States
Re: My melted P28 ECM (Benbuilt4u)
lol
thats a DSM issue with bad caps.
I think you just have a bad caps, of course it might be worse because the caps leaked around the circuitboard
replace the caps, it's 3 bucks most and then see what happens!
thats a DSM issue with bad caps.
I think you just have a bad caps, of course it might be worse because the caps leaked around the circuitboard
replace the caps, it's 3 bucks most and then see what happens!
The Boot
Joined: Dec 2001
Posts: 9,841
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From: Arizona, US
Re: (eL)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by eL »</TD></TR><TR><TD CLASS="quote">too much vt4Ch y0 
</TD></TR></TABLE>
to some, thats a serious problem for their ecm's
</TD></TR></TABLE>to some, thats a serious problem for their ecm's
Thread Starter
Honda-Tech Member
Joined: Nov 2004
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From: AZ, USA
Re: (kazino42)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by kazino42 »</TD></TR><TR><TD CLASS="quote">Looks like you put the chip on the wrong way. The notch is suppose to go the other way.</TD></TR></TABLE>
eh?
I've had this chipped for almost two years now...
My LsVTEC was hitting 14 sec 1/4 miles in my full interior coupe with a/c, ps, and on street tires with this chip "upside down"
Like to see how it would run with it "right side up"
I've been pretty happy with the mugen chip considering I don't have AFC or VAFC and the car lays down consistant numbers.
anyways, a honda tech here said the only wires going to this capacitor were the ground and main power supply....
So, wouldn't the fusable links blow near the alt first before my ecm fries?
guess not is the answer! lol!
As far as selling it...probably.
I' getting a new chipped ECM then I'm gonna try and fix this one and see if it works, then I'll prolly sell it.
Honda-Tech Member
Joined: Aug 2006
Posts: 252
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From: fort worth, tx, us
Re: (brookliner7)
DUDE!! same thing happen to my ecu!! so what do i need to do to fix this problem?? im running lsvtec too with p72 chipped and i try diff ecu p75 chipped and same spot melted dont know what to do! help please
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Joined: Jan 2007
Posts: 1,421
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From: Tampa, FL
Re: (brookliner7)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by brookliner7 »</TD></TR><TR><TD CLASS="quote">
eh?
I've had this chipped for almost two years now...
My LsVTEC was hitting 14 sec 1/4 miles in my full interior coupe with a/c, ps, and on street tires with this chip "upside down"
Like to see how it would run with it "right side up"
I've been pretty happy with the mugen chip considering I don't have AFC or VAFC and the car lays down consistant numbers.
anyways, a honda tech here said the only wires going to this capacitor were the ground and main power supply....
So, wouldn't the fusable links blow near the alt first before my ecm fries?
guess not is the answer! lol!
As far as selling it...probably.
I' getting a new chipped ECM then I'm gonna try and fix this one and see if it works, then I'll prolly sell it.</TD></TR></TABLE>
That's weird becasue it's facing oposite of all other chips. Plus, look at the white outline around any of the chips. They are all rectangular with that C at the end.. kinda like this..
-----------------
|..................C
-----------------
The chip should match the white. I put dots in the pic since I couldn't use spaces (GRR HT)
And notice how that's the only chip facing that direction.. Even the letters on your chip are upside down. Was it already chipped when you bought this?
eh?
I've had this chipped for almost two years now...
My LsVTEC was hitting 14 sec 1/4 miles in my full interior coupe with a/c, ps, and on street tires with this chip "upside down"
Like to see how it would run with it "right side up"
I've been pretty happy with the mugen chip considering I don't have AFC or VAFC and the car lays down consistant numbers.
anyways, a honda tech here said the only wires going to this capacitor were the ground and main power supply....
So, wouldn't the fusable links blow near the alt first before my ecm fries?
guess not is the answer! lol!
As far as selling it...probably.
I' getting a new chipped ECM then I'm gonna try and fix this one and see if it works, then I'll prolly sell it.</TD></TR></TABLE>
That's weird becasue it's facing oposite of all other chips. Plus, look at the white outline around any of the chips. They are all rectangular with that C at the end.. kinda like this..
-----------------
|..................C
-----------------
The chip should match the white. I put dots in the pic since I couldn't use spaces (GRR HT)
And notice how that's the only chip facing that direction.. Even the letters on your chip are upside down. Was it already chipped when you bought this?
Honda-Tech Member
Joined: Aug 2006
Posts: 252
Likes: 0
From: fort worth, tx, us
Re: (sageuvagony)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by sageuvagony »</TD></TR><TR><TD CLASS="quote">
That's weird becasue it's facing oposite of all other chips. Plus, look at the white outline around any of the chips. They are all rectangular with that C at the end.. kinda like this..
-----------------
|..................C
-----------------
The chip should match the white. I put dots in the pic since I couldn't use spaces (GRR HT)
And notice how that's the only chip facing that direction.. Even the letters on your chip are upside down. Was it already chipped when you bought this?
</TD></TR></TABLE>
i dont think it cause of that..chip facing other direction mine was facing the right direction but same thing happen to mine ill pose pix later today
That's weird becasue it's facing oposite of all other chips. Plus, look at the white outline around any of the chips. They are all rectangular with that C at the end.. kinda like this..
-----------------
|..................C
-----------------
The chip should match the white. I put dots in the pic since I couldn't use spaces (GRR HT)
And notice how that's the only chip facing that direction.. Even the letters on your chip are upside down. Was it already chipped when you bought this?
</TD></TR></TABLE>
i dont think it cause of that..chip facing other direction mine was facing the right direction but same thing happen to mine ill pose pix later today
Thread Starter
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Joined: Nov 2004
Posts: 1,261
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From: AZ, USA
Re: (PhuCDatBiCh)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by PhuCDatBiCh »</TD></TR><TR><TD CLASS="quote">DUDE!! same thing happen to my ecu!! so what do i need to do to fix this problem?? im running lsvtec too with p72 chipped and i try diff ecu p75 chipped and same spot melted dont know what to do! help please</TD></TR></TABLE>
wow, all i did was replace mine and I didn't have any more probs.
wow, all i did was replace mine and I didn't have any more probs.
Junior Member
Joined: Jan 2003
Posts: 657
Likes: 1
From: state college, pa, us
Re: (kazino42)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by kazino42 »</TD></TR><TR><TD CLASS="quote">Looks like you put the chip on the wrong way. The notch is suppose to go the other way.</TD></TR></TABLE>
UNLESS the chip was programmed backwards... then, backwards=correct.
UNLESS the chip was programmed backwards... then, backwards=correct.
Junior Member
Joined: Aug 2007
Posts: 179
Likes: 0
From: san jose, ca, 95037
Re: My melted P28 ECM (brookliner7)
this might be VERY BASIC soo basic its too dumb to think about it.
but the little 1/2 moon or cresent shape thats on the MUGEN85R e-prom chip, its facing the wrong way.
I.E. Its in backwards
i had the same problem (smoking ECU) my problem however i had the intake temeperature sensor and the throttle position sensor miswired and consaquently (R135) on the board "fried" the car still runs...runs greats but that part of the ECU is toast.
i think your might be gone
but the little 1/2 moon or cresent shape thats on the MUGEN85R e-prom chip, its facing the wrong way.
I.E. Its in backwards
i had the same problem (smoking ECU) my problem however i had the intake temeperature sensor and the throttle position sensor miswired and consaquently (R135) on the board "fried" the car still runs...runs greats but that part of the ECU is toast.
i think your might be gone
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Joined: Oct 2002
Posts: 5,152
Likes: 24
From: chicago burbs, Il, USA
electrolytics are getting old in honda ECUs they are dieing more and more commonly now.
Luserkid - Q30 pops when the EVAP and IAC are switched.
OP: If you're running with the chip that way then your CEL should be on and the car will run poorly compaired to having it in there correctly. It would also draw more power from the 5V line which would put slightly more strain on that cap... see where I'm going with this?
But the specific fuel and ignition maps of the limp mode in that ECU may happen to line up to your setup... it would be super lucky, but maybe.
Luserkid - Q30 pops when the EVAP and IAC are switched.
OP: If you're running with the chip that way then your CEL should be on and the car will run poorly compaired to having it in there correctly. It would also draw more power from the 5V line which would put slightly more strain on that cap... see where I'm going with this?
But the specific fuel and ignition maps of the limp mode in that ECU may happen to line up to your setup... it would be super lucky, but maybe.
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