RACEPAK

hello everyone.

i remember back from 04 that there was a list of all the sensors in hondas.
such as ect iat map tps (rpm?)

if anyone have it and can post it up itll be gr8.

thanks

mmuller

Ecu locations are for OBD1 ONLY let me know and ill add others


***<U>Ignition coil :</U>
primary resistance: .6 - .8 ohms (blk/yel)
secondary res. : 12.8 - 19.2 Kohms (wht/blu)

***<U>ECT fan switch :</U> (green - black wires)
A and B terminals should test for continuity above 196 - 203*F

***<U>ECT sensor :</U> (RED/WHT= D13 * GRN/BLU= D22)
output not linear

k-ohm: temp (celsius)(*F)
12 - ( -20) (-4)
5.0 - 0 (32)
2.0 - 20 (68)
1.2 - 40 (104)
0.7 - 60 (140)
0.4 - 80 (176)
0.2 - 100 (212)
0.1 - 120 (248)



***<U>VSS :</U> (-BLK= A24 * 12v+BLK/YEL= main relay * +ORN=B10)
should be 5V between ORN and Blk terminals
sensor pulses between 0-10v.

***<U>Oil pressure switch :</U> (YEL/RED)
terminal on switch is + positive; should be continuity with ground when no oil pressure. triggers when pressure is under 4.3psi

***<U>ECT sending unit :</U> (YEL/GRN)
At 133*F = 137 ohms
At 185 - 212*F = 46-30 ohms

***<U>Fuel gauge sending unit :</U>
check resistance between A-B terminals



***<U>heated oxygen sensor :</U> (GRN/BLU= D22 * ORN/BLK= A6 * YEL/BLK= B1 * WHT/RED= D14)
1.0v volt range; 1 volt being rich



***<U>MAP :</U> (GRN/WHT= D21 * WHT/YEL= D17 * YEL/WHT= D19) yel/wht can also be yel/red
linear output
around 2.84v at 0 in-hg
around .50v at 26 in-hg



***<U>TPS :</U> (YEL/BLU= D20 * RED/BLK= D11 * GRN/BLU= D22)
.5v at full closed throttle
4.0v at full open

***<U>IAT :</U> (RED/YEL= D15 GRN/BLU = D22)

k-ohm: temp (celsius)(*F)
12 - ( -20) (-4)
5.0 - 0 (32)
2.0 - 20 (68)
1.2 - 40 (104)
0.7 - 60 (140)
0.4 - 80 (176)
0.2 - 100 (212)
0.1 - 120 (248)



***<U>Baro sensor :</U>
shiet breaks, change it or the ecu or disable on rom

***<U>ELD : </U> (BLK/YEL - GRN/RED - BLK) (grn/red = D10)
blk/yel(+) and blk(-) should get batt. voltage
grn/red terminal to ground should give you 5v

***<U>knock sensor :</U> (RED/BLU) ( D3)
Here is a graph with a study done by BigMoose, hope you dont mind me using it.


***<U>IACV :</U> (-YEL/BLK - BLK/BLU) (yel/blk= B1 blk/blu = A9)


***<U>FITV :</U> (only for obd0-1)
Non eletronic;
It prevents erratic running when cold, by rising idle speed. The valve is controlled by a thermowax plunger. When engine coolant is cold, it contracts the plunger allowing for more air to enter the engine, when coolant gets to operating temp. the plunger closes.

***<U>TDC/CYP/CKP sensors</U>
TDC: ORN/BLU - WHT/BLU (b13- b14)
CYP: ORN - WHT (b11- b12)
CKP: BLU/GRN - BLU/YEL (b15 - b16)



Modified by mmuller at 1:25 PM 11/23/2006


Modified by mmuller at 1:26 PM 11/23/2006

RACEPAK

COO....
ill start with what i got. (by haynes manual!)

IAT\IATS and ECT\CTS has the same resistance.

k-ohm: temp (celsius)
12 - ( -20)
5.0 - 0
2.0 - 20
1.2 - 40
0.7 - 60
0.4 - 80

RACEPAK

MAP sensor Voltage:

volts: mmHg:
3 = 0
2.5 = 125
2 = 250
1.5 = 375
1 = 500
0.5 = 625

-----------------------------------------------------------------------------

TPS sensor Voltage:

throttle CLOSED: 0.5v
throttle OPEN: 4.5v

mmuller

Updated

RACEPAK

OMG...!!! U R THE MAN!!!

somthing sticky?

mmuller

added wire colors and their respective ecu/other locations

RACEPAK

bump-o

RACEPAK

anyone have a tps % vs volt chart?
i want to make a lookup table

.dave

Random question, but if the ECT and IAT sensors have the same resistance, has anyone ever used one in place of the other? (e.g. ECT sensor in place of IAT sensor)

RACEPAK

for what reason?
switching somthing ON in a certain temperature?

other than that i dont see a reason to do so.

.dave

The ECU makes fuel corrections according to both the ECT and IAT sensors. I'm wondering if anyone has used one in place of the other before. I'm referring to the sensor, not the fan switch.

mmuller

they wouldnt fit in place of eachother, they wold also most likely read differently bacause of the way they are contructed

gabrielsousa

anyone has the coolant temp gauge sensor voltage chart ?

Grady Hogrefe

That's all obd1 info correct?.... I need obd2 for my k series if there's anything on that .... Im trying to find ohm specs for tdc sensor

thisguyaves

(02 civic) The IAT sensor is plastic, I would not risk it in my 200* engine coolant system

It Wasn't Me

Welcome to 2006

thisguyaves

Holy ****. This was on the front page of misc though, someone must've bumped it. I didn't dig for it I swear lol