Finished t28 swap. Car wont start

Post by **Cyberkreig** » Mon Aug 23, 2004 2:18 pm

Thats right, last night i finished getting eveyrthing in and torqued down. (except my downpipe for purposes of no strain first start)

So today, I fill my fluids crank twice to prime the oil into the new turbo. Turn key and.. crank crank crank.

I've got either NO fuel, NO spark or whackedup timing. I dont know how any of those things could have been changed. I pulled #1 sparkplug and it looked wet. Fuel pump is definatly working.

Post if you have suggestions, want to make fun, or just want to post whore.

Post by **soflajdm** » Mon Aug 23, 2004 2:18 pm

i'm confused... how on earth does that happen? did you cut or disconnect a fuel line by accident? maybe your battery died?

i really dont see what starting the car has to do with changing the turbo... make sure everything is connected... it may be something as silly as a disconnected battery

Post by **Cyberkreig** » Mon Aug 23, 2004 2:18 pm

You know, I dont understand it either. This is the way I have with cars.

Battery is good. I seem to have no spark.. I'm going to go buy a multi meter..

Post by **VitaminT** » Mon Aug 23, 2004 2:18 pm

What all did you change on the car? Cams? Did you unplug the cas or ignitor on the drivers side fender?

Post by **robbbby** » Mon Aug 23, 2004 2:18 pm

check to make surethe plug at the back of the valvecover for the ignitors is clipped together?

Post by **Cyberkreig** » Mon Aug 23, 2004 2:18 pm

Checked and checked, thanks for the ideas

I have voltage to the coilpacks.. but I still dont get any spark. CAS also has voltage.

I really need help here.

Post by **soflajdm** » Mon Aug 23, 2004 2:18 pm

maybe it's a bad ground

Post by **D-UNIT** » Mon Aug 23, 2004 2:18 pm

What kind of MAF sensor are you running.

Post by **Cyberkreig** » Mon Aug 23, 2004 2:18 pm

Rotate CAS by hand, Fuel pump kicks on. WTF

Website · Post by **quiksilvia** » Mon Aug 23, 2004 2:18 pm

send me ur t28 and ill put it on my car and let u know how it works out

Post by **LSB_11** » Mon Aug 23, 2004 2:18 pm

i think to more udnerstand what might have happened we need to know exactley what you touched, or hit, or bent, or accidently cut. what exactly did you do when you did your swap.

Post by **Cyberkreig** » Mon Aug 23, 2004 2:18 pm

I really cant think of anything that I did that would have any sort of effect on the car starting.

I swapped my old o2 sensor for a plx wideband. Coiled up the old o2 plug. Tapped the new controler into power, ground and o2 line on the ecu. but of course the first thing i did when it wouldnt start was unhook ALL of that.

Post by **VitaminT** » Mon Aug 23, 2004 2:18 pm

Did you change injectors/ems?

Post by **Cyberkreig** » Mon Aug 23, 2004 2:18 pm

No. and i have verified that the injectors are clicking when it cranks.

My coils have power, just not igniton signal. I dont get it. To my mind it can only be my CAS or ECU.

Post by **VitaminT** » Mon Aug 23, 2004 2:18 pm

From what I know if the cas is disconnected/bad the coils AND injectors won't fire. None of the wiring for the ignitor came loose?

Post by **Cyberkreig** » Mon Aug 23, 2004 2:18 pm

That is useful information, and it makes sense. That points me toward a bad ecu.

I've double checked every connector i can think of.. I'm just not getting Ignition voltage on ANY of the 4 lines.

Post by **Cyberkreig** » Mon Aug 23, 2004 2:18 pm

I am SO effed. If anyone knows anyone, has seen this before please please let me know. I am so screwed.

Post by **UsedToOwn240SX** » Mon Aug 23, 2004 2:18 pm

Well you probably have narrowed it down to ECU or the igniter chip. If the injectors are spraying/clicking when you turn CAS, that means your CAS is OK (ECU got signal from CAS). Maybe in the process of connecting power to the wideband, the ECU or igniter chip got damaged? Did you get signals out of ECU to the igniter chip? Can you get an extra ECU or chip to try? Of course you have to unhooked the wideband and tape all that bare wires. Damn, man, sorry to hear that.

Post by **Cyberkreig** » Mon Aug 23, 2004 2:18 pm

Thanks, yeah I totaly unhooked the WB. But I'm not exactly a noob at wires.. I'm 100% sure i hooked it up correctly. I'm so confused.

here is what i know.

I have continuity on 5 wires from ECU to Ignitor5wire ignitor plug has good groundIgnitor passed FSM testContinuity on 4 wires from Ignitor to CoilsCoils have Hot wire (via test light)grounding any wire on the 4plug causes spark on that Cyl (via test light)

Rotating CAS causes fuel pump on (correct, means ecu gets CAS signal)Cas has good groundAll ECU grounds (that i know of) are goodAll ECU powers (that i know of) are at battery voltage

This all seems to point to a bad ecu. Sadly I dont know anyone that owns an SR, so i pretty much have to buy and pray.

Post by **D-UNIT** » Mon Aug 23, 2004 2:18 pm

I see you have a 93' . If you used your stock DE mass air unit. Your SR will never start. I asked this earlier. What kind of maf sensor are you running?

Post by **Cyberkreig** » Mon Aug 23, 2004 2:18 pm

This is not a new swap. The car has been swapped for about 2 years. To answer the question, It is a KAE MAF.

Oh, and any sr swapped car WILL start with a bogus maf or even no maf. SR ecus have a failsafe that allow starting but limit revs to 2400rpm.

Post by **Cyberkreig** » Sat Sep 04, 2004 2:45 pm

I swaped the ECU and the ignitor and the car still wont spark. I am at my wits end and just about out of money.

Post by **WhItES13** » Sun Sep 05, 2004 7:31 am

Hey Cyber, I have been following your post, but you have tried everything I would think it could be. I suggest maybe post your problem, on another board like freshalloy or something, and see if anybody over there could help. Nevermind if you have already tried this.

Post by **SpeeDDrifT** » Sun Sep 05, 2004 9:45 am

Cyber, sorry to hear about your problems, and sorry i can't be of any help but i am following this thread and others like it to help edjucate myself. What is CAS? thanks.....and good luck.

Post by **Cyberkreig** » Sun Sep 05, 2004 11:11 am

CAS is Cam angle Sensor.

Post by **DriftBandit** » Fri Sep 17, 2004 8:40 pm

Have you looked at all your vital fuses and relays???

Post by **pgt892** » Fri Sep 17, 2004 9:58 pm

I don't have anything to add, I am just confused on why the car won't start now. When you figure out what it was, let us know.

Post by **dj_lennon_franz** » Fri Sep 17, 2004 11:35 pm

this may sound silly...did you check ALL yer fuses??? i know when i thought i killed my fuel pump a few months back...it was just the fuse...car cranked and cranked and cranked...thought it was the pump....well turned out to be the fuel pump fuse...so u might wanna have a quick look at ALL yer fuses to make sure nothing popppededed

otherwise the only OTHER thing i can think of is its something with that wideband

Post by **Cyberkreig** » Sat Sep 18, 2004 4:41 am

Sorry I forgot to post a final resolution to this thread. Turned out that there was a break in one of the CAS wires... The cas has two signals 180* and 1*. One seems to be the fuel signal, the other the timing. So it turns out it IS possible for your fuel injectors to fire if your cas is not fully functional.

that info might be helpful to someone in the future.

Post by **DriftBandit** » Sat Sep 18, 2004 7:01 pm

Glad to hear its fixed.

Finished t28 swap. Car wont start

Finished t28 swap. Car wont start

Re: (Cyberkreig)

Re: (Cyberkreig)

Re: (WhItES13)

Re: (DriftBandit)

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