changed tps on ea

niko · 26-12-2005, 02:52 PM

from ea series 2 to an ed/ef style one and now it doesnt want to go into 4th gear :S

anyone know why?

stockstandard · 26-12-2005, 02:58 PM

I think the voltage values are slightly different between the two.

niko · 26-12-2005, 03:21 PM

only .3 difference

svo347 · 26-12-2005, 03:29 PM

Did u set em both up for the same values?

niko · 26-12-2005, 03:31 PM

how do i do that :S lol

there was 2 bodgy old school ea tps's i replaced it with a late ed early ef onwards one

ea2ba (jason) reckons all i had to do was chop and join the 2 tps's to the one plug

svo347 · 26-12-2005, 03:34 PM

lol.
both tps switches have to read the same value afaik, Ill check out the God Book when i get home mate...

niko · 26-12-2005, 03:38 PM

all i did was snip the 2 ea tps's loom plugs, and connected them together

green & green to new tps
orange & orange to new tps
black & black to new tps

stockstandard · 26-12-2005, 03:47 PM

There is your problem. You had one TPS for the trans and one for the ECU. Wiring them both together can stuff the signals up. Now your trans computer isnt happy with the signal its getting.

niko · 26-12-2005, 03:54 PM

thats what jason said he did lol

what can i do to fix it?

trick_xd · 26-12-2005, 03:56 PM

try unpluging just 1 of them go 4 a drive and see if it goes back to normal? Maybe jason changed the e.c.u. as well ??

stockstandard · 26-12-2005, 03:57 PM

Put the EA TPS' back in

niko · 26-12-2005, 04:00 PM

i snipped the loom of them :( lol

EDXR6T · 26-12-2005, 04:57 PM

pardone my ignorance

but what's a TPS ?lol

Damo · 26-12-2005, 05:05 PM

Throttle Position Sensor

EDXR6T · 26-12-2005, 05:15 PM

is it located on the box near the inhibater switch??

stockstandard · 26-12-2005, 05:16 PM

Its on the side of the throttle body

EDXR6T · 26-12-2005, 05:22 PM

yep im following thanks for the info

EFFalcon · 26-12-2005, 05:26 PM

i'm fairly sure InitialD and Sundeep both swapped to the single TPS, had issues so had to swap back.

stockstandard · 26-12-2005, 05:33 PM

yeah, there are issues with the internal bias resistors in the ECU and TCU messing with the signal. Unless your changing throttle body or ECU I cant see any reason why you would change the setup.

LUXO_8 · 26-12-2005, 05:37 PM

there is absolutley no benifit or gain to be had by changing the TPS.. why would ya bother?

just put the normal EA ones back in

niko · 27-12-2005, 12:30 PM

wayne, there is a benifet, its the only one that would fit on the gasresearch throttle body.

**Papa Smurf** · 27-12-2005, 03:30 PM

Both TPS switches are the same except for one has a straight through hole. At work the Mechs will use one for the other if they suspect there is a problem with the Engine one of the Gearbox one?

LUXO_8 · 27-12-2005, 03:33 PM

Quote:

Originally Posted by niko

wayne, there is a benifet, its the only one that would fit on the gasresearch throttle body.

im sure if you got the correct EA-ED housing, it'd then work with the correct ea TPS....but hey that'd cost money now wouldnt it

InitialD · 28-12-2005, 01:59 AM

Quote:

Originally Posted by EFFalcon

i'm fairly sure InitialD and Sundeep both swapped to the single TPS, had issues so had to swap back.

Correct!

JUST FOR EVERYONE SO THIS IS KNOWN THROUGHOUT THE LAND OF FORD!

You can't fit a EB2/ED/EF/EL single TPS to a EA series 2 or EB series 1 Throttle body. Even though it will screw on and you can bridge the wires, the TCU (Transmission Control Unit) will get confused and make your auto go all crazy as the ECU Throttlebody signal and transmission kickdown signals get messed up. Soon as the DUAL TPS's were refitted my auto worked correctly and stopped chewing through petrol like a 347 V8.

Now in your case Niko, isnt your car manual? so there for you would only need to connect the ECU TPS and not bother with the blue TPS wiring/plug that is the auto? or is this for a different car. IF for a different car, you could just pull the Throttlebody apart and change the main shaft in the throttlebody to the EA2/EB1 style with larger shaft for the TPS's? or just get the correct Throttle body

Now sundeep and I have BOTH told jason (EA2BA) that his way cause's issues but Im still unsure if he ever listened to me to change it back, but doesnt bother me, just means im faster then him

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niko · 28-12-2005, 12:23 PM

im running an eb2 non smartlock ecu in it, is there anyway to get around this problem with that ecu in there?

InitialD · 28-12-2005, 12:33 PM

Quote:

Originally Posted by niko

im running an eb2 non smartlock ecu in it, is there anyway to get around this problem with that ecu in there?

Wait your running a EB2 non smartlock ECU in a EA with a 4 speed auto?

EA's have a external trans controller. and also how the heck does the car run? I tried a Eb2 non smartlock ecu into a EA once and it barely ran

niko · 28-12-2005, 12:39 PM

it runs awesome. lol

thats why its still in there

InitialD · 28-12-2005, 12:43 PM

Quote:

Originally Posted by niko

it runs awesome. lol

thats why its still in there

Umm wasnt your car manual? or is this for a different car?

niko · 28-12-2005, 01:05 PM

my mums ea, the clean silver one

i also mentioned in the intitial post that it wont go into 4th gear.

InitialD · 28-12-2005, 01:11 PM

Quote:

Originally Posted by niko

my mums ea, the clean silver one

i also mentioned in the intitial post that it wont go into 4th gear.

ahh yes the Spack. Ok the only way you can use a single TPS...

A) rewire the car to EB2/ED (little hasty for just a TPS)
B) resolder on the EA dual tps style or replace the MPFI loom with a new one and install the TPS's again