Famous 1.8 swap, no spark
#1
Junior Member
Thread Starter
iTrader: (1)
Join Date: Nov 2017
Location: Kansas City, Mo
Posts: 87
Total Cats: -1
Famous 1.8 swap, no spark
So I finished up my 1.8 swap yesterday and I've never swapped a motor before, never used tuner studio or ms. I have a ms3x built by brain and a 90 chassis with a 99 JDM 1.8. I loaded a base 1.6 map (that's what I read to do on another post) then changed my injectors to run for 260cc with a required fuel of 11.something. Then whenever I tried to crank the car for the first time it sound weak like it had no power. Tuner studio then blinked on my laptop and said "battery voltage too low". The cars been sitting for 3.5 months with no trickle charge so I figured. Also the innovate MTX-L gauge I installed was reading e9 during crank. Which I found meant low voltage? Anyways, I had my friend pull his car up and try to jump it. We waited a while and nothing changed, still no start, still the code e9. But no more bad voltage reading in MS. Then we grabbed a spark plug I have and pulled the wire for #1 and grounded it against the valve cover. No spark. That's where I left off. If I need to upload a tune or datalog I'd be happy to do so. I've been searching and trying to figure out how but I can't, if someone would be kind enough to tell me how, that'd be great.
Also I was having a bad error on tuner studio where my rpms where at 64,000 (yes 64k rpms super sick redline) but when the car was off. It was all leading back to a notification saying that one pin was already being used by a datalog led. I traced it down to the I/o outputs and it seamed to be the SD card datalogging. So I simply searched for the setting, it was set to always, so I turned it off.
Also I was having a bad error on tuner studio where my rpms where at 64,000 (yes 64k rpms super sick redline) but when the car was off. It was all leading back to a notification saying that one pin was already being used by a datalog led. I traced it down to the I/o outputs and it seamed to be the SD card datalogging. So I simply searched for the setting, it was set to always, so I turned it off.
#6
I just did this swap using flyin' miata swap kit so I used the 1.6 coils, no spark, no fuel. Turned out the cam angle sensor and the injectors weren't getting 12V when cranking. I bought a voltmeter which helped me diagnose the problem. I never touched any of the wiring when swapping, don't know what happened but I got them their 12V and the cars been running ever since.
check if they're getting power,
AJ
check if they're getting power,
AJ
#7
Junior Member
Thread Starter
iTrader: (1)
Join Date: Nov 2017
Location: Kansas City, Mo
Posts: 87
Total Cats: -1
I just did this swap using flyin' miata swap kit so I used the 1.6 coils, no spark, no fuel. Turned out the cam angle sensor and the injectors weren't getting 12V when cranking. I bought a voltmeter which helped me diagnose the problem. I never touched any of the wiring when swapping, don't know what happened but I got them their 12V and the cars been running ever since.
check if they're getting power,
AJ
check if they're getting power,
AJ
#8
You can test injectors through megasquirt as well, if that ends up being an issue...
Good luck!
AJ
#9
Junior Member
Thread Starter
iTrader: (1)
Join Date: Nov 2017
Location: Kansas City, Mo
Posts: 87
Total Cats: -1
Something else I did was test spark through tuner studio using the same method you did but without cranking the engine, you can do this in test mode, I was able to get spark with the test mode but not while cranking, which told me my coil pack was working and made my CAS problem apparent.
You can test injectors through megasquirt as well, if that ends up being an issue...
Good luck!
AJ
You can test injectors through megasquirt as well, if that ends up being an issue...
Good luck!
AJ
Thread
Thread Starter
Forum
Replies
Last Post