No Spark
11-14-09, 10:15 AM
#1
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No Spark
I've read numerous threads and I still can't seem to find an answer to my problem...
I just completed my T2 swap in my vert...The engine started once but I can't get it to start again. I am gettin no spark from my coils. I switched them out and still no spark. I checked all my fuses and they7 are good. I switched out the CAS and srill no spark. If you hear a click when you turn the ignition that means the Main relay is good right? The tach used to bounce while attempting to start but now it wont move at all. I'm not sure what to do next. I read in one thread that a guy jiggled his harness around and got spark? I'm not too sure about this but I've jiggled and moved the harness multiple times and still no spark. How do I check my ECU? I did hear a pop/spark from my altenator when I hit it wwith my intercooler. think that has something to do with it? Help please
-J.R.
I just completed my T2 swap in my vert...The engine started once but I can't get it to start again. I am gettin no spark from my coils. I switched them out and still no spark. I checked all my fuses and they7 are good. I switched out the CAS and srill no spark. If you hear a click when you turn the ignition that means the Main relay is good right? The tach used to bounce while attempting to start but now it wont move at all. I'm not sure what to do next. I read in one thread that a guy jiggled his harness around and got spark? I'm not too sure about this but I've jiggled and moved the harness multiple times and still no spark. How do I check my ECU? I did hear a pop/spark from my altenator when I hit it wwith my intercooler. think that has something to do with it? Help please
-J.R.
11-14-09, 05:15 PM
#3
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changed the main relay and unplugged the airflow meter...nothing still. The Tach bounces now which is a good sign I guess but I still can't get her to fire up
11-15-09, 12:38 AM
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I'm going to check the compression in the morning...the guy Ibought the motor from said it hit 95 on all faces so I didn't worry but I just pull started it and when I hit the gas it dies out...won't start on it's on just when I pull started it
11-15-09, 05:55 AM
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when i first got my car runnin i had to push start it every but after i had push started it a few times then when it started i let it idle for about 5 to 10 minutes and drove it around a little bit and now it starts every time i turn the key i guess i just had to get all the old junk out of the motor for it to run propperly. i hope this helps and good luck
11-15-09, 10:23 AM
#7
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how did you push start? I had a friend pull me in 2nd gear but car wouldn't turn on until we were doing like 25mph. I've gotspark I've got fuel but I still can't get it to fire up and I don't know why...
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11-15-09, 11:44 AM
#9
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well as for the injectors I'm not 100% sure...it floods out tho so it's obviously getting fuel right? Changed out the coilpacks and they're firing. It makes a sound like it wants to starts(pop pop) then turns some more and does the sound again. It started once a few days ago then like an idiot I turned the switch off in my excitement and haven't been able to start it since. Think I should just push satrt again? that seems to be what every1 is saying to do from the other threads I've read
11-15-09, 09:55 PM
#10
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well I switched out the injectors...Push started it and it sounded horrible...when I pushed the gas it sounded like it was dying out. The Tach wasn't reding either. when I try to crank the car the tach bounces but when I push started it the tach read 0...Idunno what else to do. I'm searching for another AFM
11-16-09, 12:19 AM
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things I've done so far:
New plugs
Main relay
changed coilpacks
changed CAS(set properly)
ok so it wont start on it's own and floods...when I push start and try to press the accelerator pedal it bogs out. I'm going to check my injector clips tomake sure I got them in the right place but I'm sure I do. the two short ones are primary and the longer ones are secondary I believe.
I've read about jumping the 2prong wire connector beside the pasenger side strut cover? How do you "jumper" I don't understand
Sorry to keep posting but I figure the more I explain the more help someone can be. thanks
New plugs
Main relay
changed coilpacks
changed CAS(set properly)
ok so it wont start on it's own and floods...when I push start and try to press the accelerator pedal it bogs out. I'm going to check my injector clips tomake sure I got them in the right place but I'm sure I do. the two short ones are primary and the longer ones are secondary I believe.
I've read about jumping the 2prong wire connector beside the pasenger side strut cover? How do you "jumper" I don't understand
Sorry to keep posting but I figure the more I explain the more help someone can be. thanks
11-16-09, 10:55 AM
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this is no longer a spark reltated issue
I got the car to start today using the deflood precedure and the fuel pump jumper
blew a lot of smoke and died after an erratic idle
compression test without pressing relaease valve 95+both rotors
pressing release valve= 60
is that bad or good?
I'm not sure where to go from here
I got the car to start today using the deflood precedure and the fuel pump jumper
blew a lot of smoke and died after an erratic idle
compression test without pressing relaease valve 95+both rotors
pressing release valve= 60
is that bad or good?
I'm not sure where to go from here
11-16-09, 11:14 AM
#16
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If my primaries are the wrong impedence would that cause the problem I'm having? when I pulled my plugs the ones in front rotor was pretty clean but the ones in the rear are pretty gassed up...
11-16-09, 12:55 PM
#17
hm... looks like you just have shitty injectors.
make sure they are correct for that harness and that ecu ( do they plug right in? ) and then just send them out to get refurbished.
witchhunter is a great place to take em to, and they are cheap with fast turnaround.
also, you should get a t2 pressure sensor.
make sure they are correct for that harness and that ecu ( do they plug right in? ) and then just send them out to get refurbished.
witchhunter is a great place to take em to, and they are cheap with fast turnaround.
also, you should get a t2 pressure sensor.
11-16-09, 01:03 PM
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i have a T2 pressure sensor...been deflooding the car and still I can't get it to start.
Is it ok to have 720cc primaries on the stock ecu? I'll only run like that temporarily until I get some new injectors. Turns out my injectors were low impedance...I had no clue until I was just looking at injectors and saw that the 88hi has an offset clip instead of it being centered. I'm really stumped here. I found out my problem must have been the injectors but I've switched to hi-imp 720cc primaries and it still wont start. ARG
Is it ok to have 720cc primaries on the stock ecu? I'll only run like that temporarily until I get some new injectors. Turns out my injectors were low impedance...I had no clue until I was just looking at injectors and saw that the 88hi has an offset clip instead of it being centered. I'm really stumped here. I found out my problem must have been the injectors but I've switched to hi-imp 720cc primaries and it still wont start. ARG
11-16-09, 06:01 PM
#21
i have a T2 pressure sensor...been deflooding the car and still I can't get it to start.
Is it ok to have 720cc primaries on the stock ecu? I'll only run like that temporarily until I get some new injectors. Turns out my injectors were low impedance...I had no clue until I was just looking at injectors and saw that the 88hi has an offset clip instead of it being centered. I'm really stumped here. I found out my problem must have been the injectors but I've switched to hi-imp 720cc primaries and it still wont start. ARG
Is it ok to have 720cc primaries on the stock ecu? I'll only run like that temporarily until I get some new injectors. Turns out my injectors were low impedance...I had no clue until I was just looking at injectors and saw that the 88hi has an offset clip instead of it being centered. I'm really stumped here. I found out my problem must have been the injectors but I've switched to hi-imp 720cc primaries and it still wont start. ARG
11-18-09, 01:39 PM
#23
Blew my 3rd one 12/8/08
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yea those injectors on stock ecu are choking it out.
also, when you put the CAS on, you had the motor at TDC and the CAS lined up correctly right? possible timing issue?
also, when you put the CAS on, you had the motor at TDC and the CAS lined up correctly right? possible timing issue?
11-18-09, 02:14 PM
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Injector info from the FAQ:
What size injectors does my RX-7 use? What colour are they?
Year Engine Plug Size Colour Part #
84-85 13B NA, low square center, 680cc, orange, 195500-0900
86-87 13B NA, low square center, 460cc, red, 195500-1350
86-87 13B Turbo, low square center, 550cc, tan, 195500-1370
88 13B NA, high square offset, 460cc, purple, 195500-1350
88 13B Turbo, high square offset, 550cc, purple, 195500-1370
89-91 13B NA, high oval center, 460cc, red, 195500-2010
89-91 13B Turbo, high oval center, 550cc, purple, 195500-2020
What size injectors does my RX-7 use? What colour are they?
Year Engine Plug Size Colour Part #
84-85 13B NA, low square center, 680cc, orange, 195500-0900
86-87 13B NA, low square center, 460cc, red, 195500-1350
86-87 13B Turbo, low square center, 550cc, tan, 195500-1370
88 13B NA, high square offset, 460cc, purple, 195500-1350
88 13B Turbo, high square offset, 550cc, purple, 195500-1370
89-91 13B NA, high oval center, 460cc, red, 195500-2010
89-91 13B Turbo, high oval center, 550cc, purple, 195500-2020
11-19-09, 06:26 PM
#25
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I timed it perfectly according to Haynes. I found out I was using low impedence because the injectors had a centered tab. That's low impedence right? I had a set of four that was faded tan and a set of four that looked like a faded pink to me but they had centered tabs so I'm assuming that means they were low impedance as well. I know the motor runs and has good compression so I'm going to post a WTB add for another set of 720cc injectors and an rtek. Thanks for all the help hopefully that solves my problem.