electricle info needed z32 of manual

[imiitek]

just after the 0v side of each of theses sensors
map
iat
tps

for the
map sensor is it 10 g/y on ecu side
iat sensor is it 3L  g ecu side
tps sensor is it 3f or 3i un sure but guessing its 3i

on the ecu it has arrows pointing away from ecu what does that represent ?
any help would be good thanks

[imiitek]

[imiitek]

is the br/b all 0v on ecu am i looking at this corectly

[boosted]

Hi Mate,
The >> indicates connector.
For Map
B/LG looks like a grounded shield 0V . 10 gy is the voltage signal to ecu.
IAT
wont have a 0v as a resistor dropping voltage from source to signal.
TPS.
Double pot so no ov that i can see. Need the rest of the drawings to be sure.
Br/B looks like a 12 v source.

[imiitek]

thats the clearest i can get it

my only problem is to get them sensors powerd up correctly

i am only after the 0v pinouts from ecu due to thats all that stands in my way from runing standalone
for some reason when stock ecu is unplugd only them sensors are down so im guessing the stock ecu was only using the 0v for them sensors
running motec piggyback at mo

[boosted]

Thats better yes ! leave it with me  having a look now  BR/b is connected to shield so maybe 0v. ill get back to you need my magnifying glass! lol

[boosted]

Have you got p31 on link to original?

[boosted]

need 0>31 and 0>14 bud.

[imiitek]

i would send u the full manual but its 40meg i cant send that unless u got drop box
cant even find the download link online

[imiitek]

found the link its the second link
called 1994 Mazda RX7 Wiring Diagram(color) (30MB)

http://www.rx7club.com/3rd-generation-specific-1993-2002-16/94-fsms-available-download-449950/

[boosted]

Hi Mate,
Looked at drawings and these 3 devices are analogue inputs to pcm (ecu) so they dont require a 0v negative to work. They change a  12v source across a 0 to 12 v range 0>31 looks to be a positive signal from ecu that feeds these sensor but dont know what a thermo fuel sensor is?  On the motec what are you trying todo? and connect these to?

[boosted]

Mrs has put a film on so i will print out and have a another look tomoz mate as its out of focus on the link and hurting my eyes!!!

[imiitek]

Mrs has put a film on so i will print out and have a another look tomoz mate as its out of focus on the link and hurting my eyes!!!

haaaaa yea sorry man its the best i can get it im on phone


but basicly my standard ecu is piggybacked to m2r

and i think its just the 0v or grounds from them sensors missing

when i go to diagnose mode on motec the
iat tps and map sensors are not powerd up but im getting crank and injectors and evrything els i was hopeing that all 3 sensors were linked to 1 line so i can put it to motec

also the motec has the 0v missing out of it

car just cranks no start with stock ecu unpluged

[imiitek]

ooooooooo my god i am so blind i just see it now i think they are all 0v
and they are all connected to ecu pin 4D in the middle
i was just following the >>31 that was connected to dash pannel and >>14 thats connected to shielded wire for coils
and thinking to my self
how can this be possible it has to go back to ecu or ground
so just looked a bit longger at it and see the little devil 4d br/b
this is the 2nd time i have over looked somthing so simple im going to check it first
with meter make sure its 0v then snip and connect to motec see if the sensors are powerd up threw diagnostics

will report back

[boosted]

Yes i see what your saying as its conected to the coil shield. so ecu is grounding it. Meter check to be sure. also check that fuel sensor thermo thing is neg as well as connected to 4d br/b.
Good luck.