Wont Start Spark in #1#3

[renato]

http://i606.photobucket.com/albums/tt141/kilrtsi/DSC06333.jpg


hello

mi car cranks
has fuel
but only spark in the coils 1 and 3
i also changed the ignitor chip


please help

[jacobs13]

Check your wiring. Thats 99% of what these problems are

[renato]

well to make the story short the harness was cut in 3 pieces

and this are the grounds i dont know where do the go

i mean do they just go to the chassis..

http://i606.photobucket.com/albums/tt141/kilrtsi/ECUS13SR20DET.jpg

[jacobs13]

No, the ecu grounds them. Follow those wires from their plugs to the ecu

[renato]

Q:The AAC also call IAC has a ground where does it go to?

Q:TPS also has a ground where does it go?

Q:CAS has a second ground where does it go to?

[jacobs13]

Those are all grounded through the ecu. Those are the ground wires from that sensor or unit. You dont ground them to the chassis, they are supposed to be pinned in the ecu

[renato]

ok i just grounded all the pins from my post #5

but i checked pin number 2 and 9

and i'm not getting any pulse like in the pins

1 and 8

now i really think the ecu doesnt work!!

[renato]

here are some pics of my ecu

http://i606.photobucket.com/albums/tt141/kilrtsi/DSC06360.jpg
http://i606.photobucket.com/albums/tt141/kilrtsi/DSC06359.jpg

[bb4_96]

your ecu looks janky as shit, try a different one if fixing your wiring doesn't work.

[renato]

help please

does anyone know what the readings for the q45 ignitor chip should be?????

im getting this readings

I1 red/white = .00
I2 red/yellow =.04
8 black = ground
I3 red/green = 12.00 V (is this correct???)
I4 red/blue = .03

other side of the ignitor chip:

E1 red/blue = .002
E2 red/white = .002
E3 red = .512
E4 red/green = .002

http://i1000.photobucket.com/albums/af129/kilrtsi2/q45.jpg

[renato]

i just purchased a ecu for my car

its having the same symptomps

there is only spark in coils #1 and #3

what are the chances of the CAS not working well?

how can i check it?

[theyellownerd]

Do you know anyone local with an sr20? try and swap a known good ecu. I had the same exact problem got a new ecu and rewired maf runs like a champ.

[renato]

im currently in mexico so its kind of hard to test anyparts

i think i need a type x computer what do you guys think

[Pro ViZIon]

you probably just wanna get another ecu and wiring harness. all that shit is janky.

[renato]

here is an update

first start - all original parts - result: hot ignitor chip and spark only in coils #1 and #4

replaced ignitor chip - +q45 ignitor chip - result: warm ignitor chip and spark only in coils #1 and #4

then replaced the ecu - new ecu + q45 ignitor chip - result: warm ignitor chip and spark only in coils #1 and #4

everytime i checked and rechecked the wiring

anyone whats to guess why it wont start?

[renato]

please comment

need help