no spark, tested everything..codes..multimeter.. ecu..help!

[blueballa]

hey guys, i just recently bought another sr20 and swap it in myself. i did the wire harness myself as well. i have everything connected, but the car just turns over, it wont start up. heres what i tried:

ignitor chip: its fine because i replaced it with another one in my other sr20 and it starts up fine.

coil pack: i checked all coils to see if any of them get spark, nope. i check the ground as well.

i know its sending fuel. i can smell it from flooding the engine. & the pump turns on as well.

ECU: it lighs up when the key is in acc. also, i checked for codes and i got a 11. which is CAS, i replaced it with the one i had in my other SR, and reset the ecu. the car still wont start, just cranks over and over. i went back to the ecu to check for codes, and i got a 55.. wtf is a 55?? malfunction? ok..

also. i had my buddy thats a certified mechanic swing by with his multi meter and check everything. this is what our conclusion is..

wires from igniter chip to the coild pack are good, the cas is getting correct voltage, wires from igniter chip to ecu are gettin no voltage, even when cranking the car. so how do i resolve that? no power from ecu to ingniter chip? but the ecu has power?

could it be my timming? doesnt the cas send signal to the ecu which sends the signal to the coils when to fire?

idk what else to do. you guys are my only hope..

i didnt mess with wires that incorperate with the ignition. so wtf..

im really pissed off. i searched and searched, i did everything and checked everything that other people with similar problems had, and still nothing. any advice would be greatly appriciated.

[blueballa]

Code 55 means everything is o.k. as far as the sensors the ecu checks during the diagnostic.

wow.. so everything is ok, and it wont start up?? hmm. i got everything good. but no spark.. i checked the coils, but i checked the first two and both werent getting spark. so if the first two arnt getting spark then the next two wouldnt get spark as well. and im pretty sure the coilpacks dont go out in fours, ill check it agin with my other sr coil pack but i doubt its that.

[nuts510]

doublecheck that you are getting voltage at the coils themselves. The several things you say are not getting voltage makes me wonder if you have received a bad ECU. Also make sure the orange wire underneath the dash is receiving a start signal, it only gets voltage while you are cranking,

I would check that first sent your getting a code 55 from the ECU quite often if the ECU's are bad you won't get anything.

[blueballa]

orange wire that connects to the ecu? where under the dash is this orange wire?? also, i was getting a code 11 first. ( which is the CAS) i replaced it with a known working cas and reset the ecu. now im getting a code 55. if the ecu was malfunctioning, it wouldnt give me a code what so ever right? i have a feeling my timming is off, im gonna pop the valve cover and make sure its all correct.

i triple checked the coils bro. nothing what so ever, i checked several other wires while cranking the car, nothing. im not getting signal from the ecu to the igniter chip. how do i know?? because i tested the wires from ther other side of the igniter chip to the coil and i get signal.

[blueballa]

50 views and only one comment?? come on guys. i really need your guys input. my warrenty ends on the 28th.

also, the wiring was done by me, i followed directions by yuri from wiring specialty.com
Modified by blueballa at 4:09 PM 11/24/2009

[240life]

The orange wire is part of the 5-6 wires that get re pinned at the ecu connector. You could also be 180 degrees out on your timing....also check your fuses cause that orange wire has a fuse called "start signal" it usually is a 5 or 7.5 fuse and will tell your ecu when to advance the timing for cold starts. This fuse is on the lower right side of your fuse box.

[blueballa]

thanks for all the inputs guys. but it was my wiring harness. i didnt connect my ignition wire to the power from the main harness (located by the battery). it starts up perfectly.. but i have a gayer problem now...

it seems like the brakes are always ingauged. i know its not the brakes. im pretty sure its the clutch? when i start it upp and start to move, a bunch of smoke wil come out of the shifter hole.. it seems like the clutch is burning out.. when i put my foot on the clutch, the car stops like im pressing the breaks. imma pull the engine out and pull the transmission out.. ill get back to you guys as soon as its done.

[Mthompson240sx]

Im having the same problems it seems you were having...the solid orange wire to the ecu under the dash is connected and getting power when i crank.. my question is what wire is it by the battery that your talking about can you post a pic or can anyone else post a pic...

[blueballa]

damn brother. you caught me at a bad time, my cars in my shop getting fixed up, and its sunday today. i GOTTA watch my football. go EAGLES!! , lol. but yeah bro, i dont remember which wires from the top of my head, i know for sure its was one of the thick wires by the battery (guessing black with red strip) that connects 1 to 2 wires. but ill be sure to look for you. tommarro during night timeeee.

[240life]

MTthompson240sx, double check your Main ignition wires for a solid soldered and shrink wrapped connection. The 3rd wire is usually your brown o2 power wire

[blueballa]

sorry man its been like a month. i totally forgot about this. ill get to it this weekend. sorry bout the long a** wait. i hate it when people take forever to reply. i dont wanna be a hypocrite.

[blueballa]

ok. check this out.

zer...ution

this should answer all your questions.


Modified by blueballa at 2:54 AM 1/15/2010