DIYPNP Will Not Start My Miata
#1
DIYPNP Will Not Start My Miata
Hey guys, I am having a very difficult time with my DIYPNP. I have built it following the page from DIYAutotune. I'm almost certain everything within the DIYPNP is correct. I have fuel and I have spark. I upgraded injectors to 550cc, but I changed the settings on the base map from DIYAutotune for my injectors. My car has a turbo and it's also automatic (manual swapping this winter lol). I have read that the autos have a variable TPS. Would this affect anything if I hooked it up in the DIYPNP with no variable TPS? I cannot get this car to start and it's been over 2 weeks of messing with it. I'm totally lost. Any help would be greatly appreciated. I have a datalog but don't know how to upload it (sorry, I'm a noob)
#2
Senior Member
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If you have a variable TPS, then you should've followed the notes in the DIYautotune guide for variable TPS. Not having the TPS wired is not an issue for starting, but if you have it wired incorrectly and it's sending bad voltage somewhere, it would be an issue.
Post pictures of your board and take a composite log. From the info provided, you either didn't build it correct, or you need to tune it. You say you have fuel and spark.. do you get any combustion? Does it try to start?
Post pictures of your board and take a composite log. From the info provided, you either didn't build it correct, or you need to tune it. You say you have fuel and spark.. do you get any combustion? Does it try to start?
#4
acedeuce802- It wants to start but it won't catch and take off
mmmjesse- It's a 1991 with a turbo and it's automatic. I have check spark and fuel and I have both. It wants to start but acts like it doesn't want to catch. I'm also located in MD
Here are pics of my board -
mmmjesse- It's a 1991 with a turbo and it's automatic. I have check spark and fuel and I have both. It wants to start but acts like it doesn't want to catch. I'm also located in MD
Here are pics of my board -
#7
Okay guys, I haven't had time to work on her until today. I got it running sort of. It idles but sounds like It's not running on a few cylinders. Also, when it warms up to operating temp, it dies and will not start until it cools down. Anyone know what is happening? Any help would be greatly appreciated.
#8
Okay guys, I haven't had time to work on her until today. I got it running sort of. It idles but sounds like It's not running on a few cylinders. Also, when it warms up to operating temp, it dies and will not start until it cools down. Anyone know what is happening? Any help would be greatly appreciated.
#9
Boost Czar
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the fact that you have a 1K resistor going into "GND" (which actually goes nowhere) back to 4A, suggests you didn't follow the DIYAUTOTUNE.com instructions, but instead made up your own.
Did you remove ST_SIGN fuse?
Shuiend posted the correct answer.
Did you remove ST_SIGN fuse?
Shuiend posted the correct answer.
#16
It is about 10. It's running extremely rich. Vaccum line is connected. TunerStudio is showing vaccum. I'm using DIYAutoTune base map for 460cc injectors and I changed required fuel because my injectors are 550cc. Yes, it sounds like it's only running on 2 cylinders. When I try to rev it, it hesitates extremely bad and revs really slow. It actually idles, but only on like 2 cylinders. Also, when the operating temp gets normal, the car shuts off and does not start back up until it has cooled down