e30FTMFW

ok....so i bought a new one...omni power...or what ever it is....sooo....i go to adjust the volts ...The Green one is a ground The yellow one is constant 5V is what i have red...and the red fluctuates....so....i get 4.99 for the yellow...but i cant adjust the red any lower then 5.12 ...the problem im having is the car bucks ...and it idles poorly ...but you have to drive it for it to do it....any idea what my prob is guys? i have a b18b1...this is the tps i bought

94-01 ACURA INTEGRA (ALL MODELS)THROTTLE POSITION SENSOR (TPS) BY OMNI-POWER

This item will fit the following vehicles:

1995 to 2003 Acura CL 4cyl and V6

1990 to 1991 Acura Integra XSI / RSI ( JDM ) B16
1992 to 1993 Acura Integra XSI / RSI B16
1992 to 1993 Acura Integra GSR B17A1
1990 to 1993 Acura Integra GS B18A1
1994 to 2000 Acura Integra GS LS RS B18B1
1995 to 1997 Acura Integra SiR ( JDM ) B18C
1994 to 2001 Acura Integra GSR B18C1
1995 to 1998 Acura Integra Type R B18C3
1997 to 2001 Acura Integra Type R B18C5
1988 to 1989 Acura Integra D16A1
1988 to 1989 Acura Integra D16A3
1988 to 1989 Acura Integra D16A8 / D16A9
1990 to 1993 Acura Integra ZC

1991 to 1995 Acura Legend

2001 to 2002 Acura MDX

1995 to 2005 Acura NSX

1995 to 2003 Acura TL 4cyl and V6

1990 to 1993 Honda Accord 2.0 SI ( JDM ) F20A
1990 to 1993 Honda Accord F22A1
1990 to 1993 Honda Accord F22A4
1991 to 1993 Honda Accord F22A6
1994 to 1997 Honda Accord EX F22B1
1994 to 1997 Honda Accord DX / LX F22B2
1994 to 1997 Honda Accord SiR H22

1992 to 1996 Honda Del Sol SiR B16A
1993 to 1995 Honda Del Sol ( JDM ) B16A2
1992 to 1995 Honda Del Sol B16A3
1992 to 1995 Honda Del Sol Si D16Z6

1992 to 1996 Honda CRX SiR ( JDM ) B16A
1990 to 1991 Honda CRX SiR B16A1
1988 to 1991 Honda CRX HF D15B6
1988 to 1991 Honda CRX Si D16A6
1989 to 1992 Honda CRX Si 1.6L ( JDM ) ZC

1997 to 1998 Honda CRV B20B
1998 to 2001 Honda CRV B20Z

1992 to 1995 Honda Civic DX LX D15B7
1992 to 1995 Honda Civic CX D15B8
1996 to 2000 Honda Civic HX D16Y5
1996 to 2000 Honda Civic LX DX D16Y7
1992 to 1995 Honda Civic VX D15Z1
1988 to 1991 Honda Civic EX Si D16A6
1996 to 2000 Honda Civic EX D16Y8
1992 to 1995 Honda Civic EX Si D16Z6
1989 to 1991 Honda Civic SiR ( JDM ) B16A
1996 to 2000 Honda Civic VTi B16A
1989 to 1992 Honda Civic SiR ( JDM - Hach ) B16A
1990 to 1991 Honda Civic SiR ( JDM ) B16A
1999 to 2000 Honda Civic Si B16A2
1988 to 1991 Honda Civic Si ( JDM ) ZC
1992 to 1995 Honda Civic SiR II B16A2
1998 to 2001 Honda Civic Type R ( JDM ) B16B

1995 to 2004 Honda Odyssey

2003 to 2004 Honda Pilot

1990 to 1991 Honda Prelude 2.0 S B20A3
1990 to 1991 Honda Prelude 2.0 Si B20A5
1988 to 1989 Honda Prelude Si B0A5
1990 to 1991 Honda Prelude Si B21A1
1992 to 1996 Honda Prelude Si F22
1992 to 1996 Honda Prelude S F22A1
1992 to 1996 Honda Prelude VTEC H22
1997 to 2001 Honda Prelude SiR ( JDM ) H22A
1999 to 2001 Honda Prelude H22A
1887 to 2001 Honda Prelude Type S ( JDM ) H22A
1997 to 1998 Honda Prelude H22A1
1993 to 1996 Honda Prelude VTEC ( USDM ) H22A1
1997 to 2001 Honda Prelude ( USDM ) H22A4
1993 to 1995 Honda Prelude Type S ( JDM ) H23
1992 to 1996 Honda Prelude SE Si H22A1

e30FTMFW

bump

Jonathan_ED3

Are you wired up for OBDO or OBDI? If OBDI, are you throwing code 7?

The easier way to do this is to measure it at the ECM. This is all assuming you are OBDI (since you said b18b1).

I think you're getting two different readings confused with eachother.

Turn your ignition switch to "on" but don't start the car.

The measurement you want to see 5v with is by putting (+) into D20, and (-) into D22. You should see exactly 5v when doing this.

Now, to adjust the TPS - Put your (+) multimeter probe into ECM pin D11. Put the (-) into pin D22. Move the TPS back and forth until it shows .5v at idle (you do not touch the throttle body) and 4.5v with the throttle body fully open. You can open it up with the gas pedal or do it by hand at the throttle body.

If no matter what you do you can't get these readings, you probably have the TPS installed wrong. I know it's possible because I did it. When I installed it I didn't have the shaft engaged right and no matter what I did I couldn't adjust it to within the designated specs.

e30FTMFW

im pretty sure its wired obd0 ...i dont have the "jumper?" ...now what do you mean at the ecm? ...i was trying to get resistance and it was all messed up too ...when you install the tps does the little rod type thing go in between the 2 groves ..in the little notch?

e30FTMFW

also i get no codes ...only a CEL when the tps is unplugged

Jonathan_ED3

Yes the rod goes in between the two grooves.

You don't know if your car is wired OBDO or OBDI? The info I provided is for OBDI.

What computer do you have in your car? ECM = computer.

skidmarkroyalty

iTrader: (1)

thought the newer TPS's were self calibrating?

e30FTMFW

i bought the car swapped and im trying to fix his many problems ...it had the wrong ecu when i got it...so my friend said i needed to use this one...he said its out of a 93 teg



heres the pic of it

e30FTMFW

ecm is the computer? i call them ecu hahah ...same thing i guess hahah....i think the car is obo0 because of single o2 plug right?

Jonathan_ED3

The TPS in your car is not self calibrating.

That ECM looks to be an OBD0 model (made for b18a1 engine).

I'm not sure what ECM pins to test on OBD0 cars -- maybe someone else can chime in here, otherwise you are going to have to continue to try to test at the TPS, which, in my opinion, is a huge PITA.

The procedure is the same though - .5v at full close, 4.5v at full open.

e30FTMFW

thanks man ...ill try it again...hopefully some one can chime in like you said....this really is a big pain in the ***

Jonathan_ED3

Why did you replace the TPS in the first place? Just curious.

e30FTMFW

i figured it was bad because me car has all the symptoms of a bad tps....and when i unplug it the car runs fine....i could not thing of anything else that could cause it...this sucks hahah

e30FTMFW

ok sooo...i set it...got it to .45v and it is still doing it!?!??!!? i have no idea why...when the tps is unplugged its fine....with it plugged it idles bad and bucks sometimes...when it idles bad...it will get worse and worse and worse ..like lower each time say 800-1000...then 800-1200....then it will got like 1200-100 and then almost stalls and then it catches itself and idles perfectly fine!?!?!? any ideas!?!!

satinsol

IACV (intake air control valve) go to junkyard get another one.
see if that fixes your problem. it should be less than 5 dollars.
Itll even fit in your pocket if your a tightwad. good chance itll work man.
try it

satinsol

its on the back of the intake manifold i believe,
and get the OBD1 ecu for the b18b non vtec.

e30FTMFW

thats what i was told by my buddy...i cleaned it before...why would the tps when its in make the car run bad but out make it run fine...how does it affect the iacv?

Jonathan_ED3

What you really need to do is get a service manual and start following the flowcharts. Otherwise you will just be guessing in the dark, especially if you aren't throwing any codes.

Are you even sure the all wiring is 100% correct? What type of car do you have?

Even though you have a b18b, it will run perfectly fine as OBD0 (essentially rendering it like a b18a swap) assuming it was wired up right.

skidmarkroyalty

iTrader: (1)

maybe you should try running the tps wiring straight to the ecu? when you figure out which ecu you need that is.

e30FTMFW

so i i shouldnt be using the ecu i have?

e30FTMFW

i have a b18b1 in a 91 crx hf, i havent checked to see if the wiring is all correct, i assumed it was because the car ran...could it be messed up?

Jonathan_ED3

DON'T CUT ANYTHING OR REWIRE ANYTHING!!!! There is no need to do that.

Check for continuity between C7 and red/blue of your TPS plug.

Check for continuity between C12 and green/white of your TPS plug.

Check for continuity between C13 and yellow/white of your TPS plug.

It sounds like you have a b18b being ran as OBD0 (effectively making it a b18a swap - perfectly fine!). Take a picture of your ECM plugs and I can tell you for sure.

Since you have an HF (you're 100% sure it's an HF?), your car didn't even need to have any rewiring done since it was already MPFI. It's basically one of the easiest swaps (wiring wise) of all time.

Basically, what I am saying is that your car should run perfectly fine - and considering you aren't throwing any CEL's or somebody has botched the wiring, I still think it is probably an adjustment problem at your TPS.

Try to readjust your TPS with a good multimeter and testing at the ECM pins and not at the plug itself. I'm fairly confident that if you get it adjusted properly your problems will go away.

You have checked timing and all the other peripheries as well?

Do you know which plugs are C7, C12, and C13? Do you know how to tell?

Are you sure that ECM is out of a 1993 Integra? If so, it wouldn't plug into your harness because it would be OBDI. It's probably out of a 1990/1991. Like I said, take a pic of your ECM plugs and I can tell you for sure.

If you really want to get the most out of your swap, consider converting to OBDI. You will need to swap the distributor and get an ECM conversion harness. But this is not a necessity. Your car will run nearly perfect as-is.

e30FTMFW

ok so ill send pix of the plugs....the thing is that i got it set right...so the tps is set where it should be, at .45v ...but its still giving me a prob....ill post some pix of it tomorrow then thanks man!

e30FTMFW

bump....it seems like its having trouble going through cold start...is the car sposed to idle at 2000 rpms for the first 3-4 mins?

skidmarkroyalty

iTrader: (1)

mine idles high in the cold at first. but its a D not a B. couldnt tell you if it is sposed to or not though. haha.