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LOS222 · 01-31-2004, 11:19 PM

I've been working on a Accord/H22 swap since late summer and have one final problem. When I plug in the p-13 ecu, it idles funny. I can still use my car cause when I plug in the stock ecu my car runs fine but, I don't have the power I'm supposed to nor vtec. I'm not a mechanic wiz so I'll try to explain this as best as I can. My mechanic told me that .75 volts are supposed to go into your ecu. The p-13 ecu is showing 7 volts flat for the idle control valve. How do I correct this? Is my p-13 ecu bad? Can it be fixed? What options do I have?

randerson165 · 01-31-2004, 11:24 PM

is he talking about idle control or the TPS sensor ??? If its a tps sensor, you can adjust it, but going from 7 volts to .75 is a big jump and I'm no mechanic either but I'll cross my fingers for you, cuz i think you'll need it !!!

LOS222 · 02-01-2004, 01:49 AM

he said idle control, not TPS. What does this mean? Do I need a new ecu?

dohcvtec_accord · 02-02-2004, 04:26 PM

Did you switch pins A6 and A11 at the ECU?

LOS222 · 02-06-2004, 09:09 AM

mmmm... not sure, I'll have to ask my mechanic on that one. What does that do?

dohcvtec_accord · 02-06-2004, 09:12 AM

It's only applicable if your car is a 94 or 95 Accord(which you didn't specify). It may also need to be done for the 90-93 Accord. I'm positive you don't if you've got an OBD2 Accord, however.

Anyway, for some reason, the Accords and Preludes had the wires for the Heated O2 Sensor and EGR valve switched on the wiring harnesses. So, if you're plugging a P13 ECU into an Accord wiring harness, you need to switch the pins or else you'll throw a code and the car will idle and run funny.

LOS222 · 02-06-2004, 05:43 PM

I've got a 96 accord. Not throwing any codes

tab · 02-06-2004, 11:36 PM

96 is OBD II, and no, you don't need to switch pins A6 and A11 in the 90-93 Accords. You don't have to worry about those pins. Have you done an OBD 2 > OBD 1 conversion? The P13 might be OBD 1, where you were OBD 2 in the Accord.

02-06-2004, 09:12 AM	#6
dohcvtec_accord WRX Sellout Join Date: Sep 2002 Location: The left lane Age: 32 Posts: 8,498 iTrader: 0 / 0% Ride: 2002 WRB Impreza WRX Rep Power: 100	It's only applicable if your car is a 94 or 95 Accord(which you didn't specify). It may also need to be done for the 90-93 Accord. I'm positive you don't if you've got an OBD2 Accord, however. Anyway, for some reason, the Accords and Preludes had the wires for the Heated O2 Sensor and EGR valve switched on the wiring harnesses. So, if you're plugging a P13 ECU into an Accord wiring harness, you need to switch the pins or else you'll throw a code and the car will idle and run funny. __________________ This space left intentionally blank.

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01-31-2004, 11:19 PM	#1
LOS222 Member Join Date: Aug 2003 Posts: 95 iTrader: 0 / 0% Rep Power: 14	I've been working on a Accord/H22 swap since late summer and have one final problem. When I plug in the p-13 ecu, it idles funny. I can still use my car cause when I plug in the stock ecu my car runs fine but, I don't have the power I'm supposed to nor vtec. I'm not a mechanic wiz so I'll try to explain this as best as I can. My mechanic told me that .75 volts are supposed to go into your ecu. The p-13 ecu is showing 7 volts flat for the idle control valve. How do I correct this? Is my p-13 ecu bad? Can it be fixed? What options do I have?

01-31-2004, 11:24 PM	#2
randerson165 Senior Member Join Date: Dec 2002 Location: Eugene, Oregon Posts: 749 iTrader: 0 / 0% Rep Power: 22	is he talking about idle control or the TPS sensor ??? If its a tps sensor, you can adjust it, but going from 7 volts to .75 is a big jump and I'm no mechanic either but I'll cross my fingers for you, cuz i think you'll need it !!!

02-01-2004, 01:49 AM	#3
LOS222 Member Join Date: Aug 2003 Posts: 95 iTrader: 0 / 0% Rep Power: 14	he said idle control, not TPS. What does this mean? Do I need a new ecu?

02-02-2004, 04:26 PM	#4
dohcvtec_accord WRX Sellout Join Date: Sep 2002 Location: The left lane Age: 32 Posts: 8,498 iTrader: 0 / 0% Ride: 2002 WRB Impreza WRX Rep Power: 100	Did you switch pins A6 and A11 at the ECU?

02-06-2004, 09:09 AM	#5
LOS222 Member Join Date: Aug 2003 Posts: 95 iTrader: 0 / 0% Rep Power: 14	mmmm... not sure, I'll have to ask my mechanic on that one. What does that do?

02-06-2004, 05:43 PM	#7
LOS222 Member Join Date: Aug 2003 Posts: 95 iTrader: 0 / 0% Rep Power: 14	I've got a 96 accord. Not throwing any codes

02-06-2004, 11:36 PM	#8
tab Super Moderator Join Date: Jan 2003 Location: Aberdeen, Washington State Posts: 3,736 iTrader: 0 / 0% Ride: 03 Avalanche Rep Power: 52	96 is OBD II, and no, you don't need to switch pins A6 and A11 in the 90-93 Accords. You don't have to worry about those pins. Have you done an OBD 2 > OBD 1 conversion? The P13 might be OBD 1, where you were OBD 2 in the Accord.

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