NO SPARK

Post by **swift240sx** » Mon Dec 28, 2009 7:04 pm

Ok so i reset my ecu and now its telling me no problems (before it was code #13)... but now im not getting any spark. so coilpack problem? spark plug problem? wiring problem (still? gotta be kidding me), what could be messing with spark?

Post by **themadscientist** » Mon Dec 28, 2009 7:07 pm

How do you know you have no spark? How did you confirm this?

Post by **swift240sx** » Mon Dec 28, 2009 7:31 pm

OK so now im getting spark. but my engine is not starting. Im getting fuel (i can hear my fuel pump turn on) I can see fuel on the spark plugs. I tried starting my car like 100 times before i got spark... Is my engine flooded? can i flood an engine with fuel injection? or is it only with an engine with carbs that can flood?

Post by **themadscientist** » Mon Dec 28, 2009 9:10 pm

Cranking with no spark can do that. Pul the fuel pump relay and continue to crank.

Post by **swift240sx** » Tue Dec 29, 2009 7:38 am

ok so i pulled the relay and cranked it. should i keep cranking it to get all the fuel out then put the relay back in and hope it starts? ha

Post by **Ca_Silvia** » Tue Dec 29, 2009 8:55 am

Start testing that the injectors are firing, could have messed up the connections from the harness to the injector so they are not firing in proper order

Post by **swift240sx** » Tue Dec 29, 2009 10:07 am

how do i test that? ha sorry i just got this car four days before the harness melted, so i know nothing.

Post by **boost_boy** » Tue Dec 29, 2009 1:37 pm

swift240sx wrote:Ok so i reset my ecu and now its telling me no problems (before it was code #13)... but now im not getting any spark. so coilpack problem? spark plug problem? wiring problem (still? gotta be kidding me), what could be messing with spark?

You say you checked your ecu and got code 13, right? Did you search and see what that code is for? It is an extremely important code. One that will cause you all the headaches you're having. It means that your water temperature sensor plug (the one on the intake manifold closest to the rear of timing belt cover) is either not connected properly or the sensor has failed. Address this area and you should be just fine.

Dee

Post by **swift240sx** » Tue Dec 29, 2009 3:05 pm

I know i checked the temp sensor plug took it off and re-plugged it in and then got code 55 which is "no problem" code... maybe the plug is playing tricks on me haha. ill check it again thanks for the info. everything is helping. I was scared that owning a ca would be a headache but it seems like there are quite a lot of knowledgeable people on here. thanks nico

Post by **float_6969** » Wed Dec 30, 2009 4:32 am

How did you check to see if you're getting spark?

Post by **swift240sx** » Thu Dec 31, 2009 11:43 am

i pulled one of he spark plugs out with the coilpack. laid the plug on the heat shield and cranked the car and saw a spark coming from the plug.

Post by **swift240sx** » Thu Dec 31, 2009 11:48 am

I dont get it. i get fuel and spark but my car still doesnt start!!!! what is it?? what else does a motor need to start????

Post by **boost_boy** » Thu Dec 31, 2009 12:00 pm

swift240sx wrote:I dont get it. i get fuel and spark but my car still doesnt start!!!! what is it?? what else does a motor need to start????

Do you have the orange wire attached on the dash connector plug located to the right of the glove box. Your issues are in your wiring. Focus on your wiring job and I'm sure you'll be fine.

Dee

Post by **swift240sx** » Thu Dec 31, 2009 12:17 pm

Thanks. Thats what Ive been thinking. I know the orange one is connected because that the first thing i checked... the power to the ignition.

There is so many damn wires, i have no idea where to start...

Post by **swift240sx** » Thu Dec 31, 2009 1:33 pm

could it have something to do with my main ignition power? could i still be getting spark and fuel but not the ignition power to start it? Basically how i wired it was soldering the (black/white) ecu power, and both (black/red and blue/red) ignition wires to the same spot on another 12v wire connected to the end of the harness where it plugs into the main chassis harness. Fig. 5a on frsport.

http://www.frsport.com/SR20DET....html

Post by **swift240sx** » Thu Dec 31, 2009 4:27 pm

ok... now my car is throwing code 34... knock sensor code. does this affect a car starting? or would it just idle rough? my question is. Where the hell is the knock sensor, and do i need to wire the knock sensor wires coming from the engine to the ca harness? Im very confused because the frsport writeup says nothing about rewiring the knock sensor

Post by **float_6969** » Thu Dec 31, 2009 7:22 pm

It's not in there and it won't be. The only difference between wiring up an an SR and a CA is the knock sensor.

On the SR the knock sensor wiring is in the engine harness so you don't need to do anything, but on the CA, the knock sensor wiring ran though the lower engine harness, into the plugs under the fuse box to the plugs behind the battery and then to the ECU.

So to fix it you have to run a wire from the knock sensor located under the intake manifold to the ECU directly.

But that wouldn't keep the car from starting, it just pulls timing and the car lacks power.

Did you check your cam timing? Have you checked compression?

Post by **swift240sx** » Thu Dec 31, 2009 7:33 pm

thanks a lot. I guess ill wire it into the ecu. or at least wire it into the wires that go to the ecu. Well i checked the compression before i bought the car. it was all good. The car ran perfectly before the harness blew up and melted, so it cant be anything wrong with the engine mechanically. Its gotta be the wring. the only thing is that wiring is so messy and hard to diagnose whats wrong with so many different wires and whatnot. not gonna be fun. I cant see how my compression and timing could be off because of wring

Post by **boost_boy** » Fri Jan 01, 2010 6:02 am

swift240sx wrote:thanks a lot. I guess ill wire it into the ecu. or at least wire it into the wires that go to the ecu. Well i checked the compression before i bought the car. it was all good. The car ran perfectly before the harness blew up and melted, so it cant be anything wrong with the engine mechanically. Its gotta be the wring. the only thing is that wiring is so messy and hard to diagnose whats wrong with so many different wires and whatnot. not gonna be fun. I cant see how my compression and timing could be off because of wring

If your harness had a melt down, then you got problems. Either you know how to repair your harness or replace it with another. The wiring is where most of you go wrong at and I do mean most. Some may get the engine to run and think they've scored a home run, but then disaster strikes when the engine stops running or doesn't run correctly which prompts these distress posts. I always say, take your time and follow simple instructions and if you don't think yo can handle it, be patient and find someone competent that can render you assistance.

Dee

Post by **float_6969** » Fri Jan 01, 2010 12:11 pm

Whoa, the harness melted? There's almost no telling what's going on now. Did you repair the harness, or replace it? What caused it to melt in the first place? How do you know that it didn't damage anything else like the CAS, or MAFS, or ECU, or the injectors, or the coil packs, or the ignitor?

Post by **swift240sx** » Fri Jan 01, 2010 2:24 pm

so my tire rubbed through the harness and two wires crossed and the plastic around the wires started to melt. I checked the ecu, opened it up and nothing seemed wrong. I replaced the entire harness myself. (ive never wired anything). So far its taken me two weeks and trial and error and looking at write ups to figure things out. at this point I almost want to just get an SR and light this ca on fire. im getting so tired of this

NO SPARK

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