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-   -   Little car BIG dumpster fire part II (https://www.miataturbo.net/build-threads-57/little-car-big-dumpster-fire-part-ii-94737/)

concealer404 05-15-2018 08:18 PM

https://media.giphy.com/media/65os7odbIW6pa/giphy.gif

LittleCarBigFun 05-15-2018 08:20 PM

Alright, fuck it. Since its a hopeless dumpster fire, FUCKING FREE!

hi_im_sean 05-15-2018 08:23 PM

Will you deliver?

LittleCarBigFun 05-15-2018 08:24 PM

I could try. Fucking thing won't run

ManiacLachy 05-15-2018 08:26 PM

lol. Walk away, go have a beer, come back tomorrow and you'll get it done in no time. Shit just gets worse when you're worked up and frustrated. Happens to me almost every time I work on the car.

ryansmoneypit 05-15-2018 10:43 PM

Yep, go find something else to do for a little while.

concealer404 05-16-2018 07:57 AM

Oh if it won't run at all, that's not the TPS. It'll start and idle with no TPS signal at all (as you found earlier).

LittleCarBigFun 05-16-2018 08:04 AM


Originally Posted by concealer404 (Post 1482486)
Oh if it won't run at all, that's not the TPS. It'll start and idle with no TPS signal at all (as you found earlier).

Right, it just won't sense the signal from the tps

concealer404 05-16-2018 08:39 AM

Are we having an actual discussion or are you just parroting what i'm saying without understanding?

Does the car run or not? You said it doesn't. Does it actually run?

LittleCarBigFun 05-16-2018 08:41 AM

My bad, I meant that it'll turn on and idle, but nothing past that. Any throttle that's applied, the car immediately dies

concealer404 05-16-2018 08:45 AM

Gotta be concise, otherwise you don't get anywhere.

Fix your TPS. Once you've got a handle on that, fix your wideband. Then re-evaluate.

LittleCarBigFun 05-16-2018 08:46 AM

I'll probably replace my wideband, and Lars is gonna be awesome and drop ship me a new tps.

concealer404 05-16-2018 09:10 AM

How did you arrive at the conclusion that the TPS is defective?

I would verify that your wideband is broken before you replace it. No offense but you don't seem to have any idea what you're doing, so it's more than likely that you just don't have it hooked up right, or it might be something little like a dead sensor. Throwing $160 at the problem without having an understanding of what is actually wrong doesn't have a great chance of success.

LittleCarBigFun 05-16-2018 09:15 AM

Makes sense, and the wideband has been throwing the E8 error code on and off lately. I'd have to check the wiring again since the shop did it. And the tps had no voltage going to it whatsoever.

concealer404 05-16-2018 09:17 AM


Originally Posted by LittleCarBigFun (Post 1482503)
Makes sense, and the wideband has been throwing the E8 error code on and off lately. I'd have to check the wiring again since the shop did it. And the tps had no voltage going to it whatsoever.

Going TO it? As in it isn't being supplied reference power?

LittleCarBigFun 05-16-2018 09:20 AM

The wire that's supplying the voltage is giving off the 5v reading, but I'm not able to get a proper ground with any of the prongs in the tps.

concealer404 05-16-2018 09:23 AM

Got a diagram handy? I didn't look into this much when i did this job the other day. I swapped two wires and went on with my ilfe.

I suspect there's a ground in the wiring going TO the TPS. If so, do you get a good ground through that?

LittleCarBigFun 05-16-2018 09:25 AM

I'll have to check again, but I don't have a diagram. I did switch the wires, but that did nothing, as there was still no signal coming from the tps

Braineack 05-16-2018 09:26 AM

it's the black/green wire.

LittleCarBigFun 05-16-2018 09:28 AM

Oh...I switched the black and red wire...

Braineack 05-16-2018 09:32 AM


Originally Posted by LittleCarBigFun (Post 1482512)
Oh...I switched the black and red wire...

with what?

what is even happening here? have we really gone like 5 pages about a tps now?

concealer404 05-16-2018 09:35 AM


Originally Posted by LittleCarBigFun (Post 1482509)
I'll have to check again, but I don't have a diagram. I did switch the wires, but that did nothing, as there was still no signal coming from the tps

You should probably find a diagram. Then use the diagram to ensure that you have your pigtail wired right, and that it's got ground/voltage where it should.

hi_im_sean 05-16-2018 10:08 AM

Good lord,

https://cimg7.ibsrv.net/gimg/www.mia...82a59e7dce.png


Black/lt grn is ground, dont fuking touch it... or rather put it back where it was.

Type "miata schematic" into google and literally a 100+ results of factory wiring diagrams. This thread may confuse you more than it helps you, but for the cognitive thinkers among us:
https://www.miataturbo.net/megasquir...5-75375/page2/

LittleCarBigFun 05-16-2018 10:10 AM

When I say switched I meant swapped. Didn't think there was much of a difference, my bad. And there's just three wires for it the red being the 5v, the black being the ground, and the green being the signal. I switched the ground and the 5v wires around, which is what I thought I was supposed to do. And I also read that PNP Pro already has a jumper for the tps, is that true?

concealer404 05-16-2018 10:12 AM

That'll do it.

Braineack 05-16-2018 10:12 AM


Originally Posted by LittleCarBigFun (Post 1482518)
And I also read that PNP Pro already has a jumper for the tps, is that true?

what does the manual that was provided with it say?

concealer404 05-16-2018 10:16 AM


Originally Posted by LittleCarBigFun (Post 1482518)
When I say switched I meant swapped. Didn't think there was much of a difference, my bad. And there's just three wires for it the red being the 5v, the black being the ground, and the green being the signal. I switched the ground and the 5v wires around, which is what I thought I was supposed to do. And I also read that PNP Pro already has a jumper for the tps, is that true?

Don't touch the middle wire. Just don't. Well, now that you already did, undo that. Then don't touch it again.

LittleCarBigFun 05-16-2018 10:19 AM


Originally Posted by Braineack (Post 1482522)
what does the manual that was provided with it say?

Reading up and it's saying with the pnp pro that it'll need a jumper

concealer404 05-16-2018 10:20 AM


Originally Posted by LittleCarBigFun (Post 1482524)
Reading up and it's saying with the pnp pro that it'll need a jumper

So using powers of reasoning, do you think you need a jumper or not?

LittleCarBigFun 05-16-2018 10:27 AM


Originally Posted by concealer404 (Post 1482525)
So using powers of reasoning, do you think you need a jumper or not?

Going by what DIYAUTOTUNE has on their website, yes I'll need a jumper

concealer404 05-16-2018 10:30 AM


Originally Posted by LittleCarBigFun (Post 1482528)
Going by what DIYAUTOTUNE has on their website, yes I'll need a jumper

Make it happen. Feels like we're making progress today. I mean, just look at my post count growing!

Alecs Strayer 05-16-2018 10:35 AM

$1000 cash in hand, I’m in Fort Walton. Give me a call :-) 8503768431

LittleCarBigFun 05-16-2018 10:41 AM


Originally Posted by Alecs Strayer (Post 1482530)
$1000 cash in hand, I’m in Fort Walton. Give me a call :-) 8503768431

Sorry man, I was drunk and angry as shit when I said that. I'm gonna give it another shot today.

18psi 05-16-2018 12:23 PM


Originally Posted by LittleCarBigFun (Post 1482428)
TPS is fucked. I'm done with this, every single time I try something I fail. This project has been nothing failures and will continue to be so for me. $1k for the whole damn car with everything. Located in Crestview Florida. Maybe someone else can get it going and have fun with it


Originally Posted by Alecs Strayer (Post 1482530)
$1000 cash in hand, I’m in Fort Walton. Give me a call :-) 8503768431

So you can be even dumber and fail even harder?

LittleCarBigFun 05-16-2018 01:45 PM


Originally Posted by 18psi (Post 1482563)
So you can be even dumber and fail even harder?

Aww you're so kind

miataman04 05-16-2018 10:02 PM

I would consider this to be a love/hate relationship.

90LowNSlo 05-16-2018 11:50 PM


Originally Posted by concealer404 (Post 1482431)

I have read nearly every post so far... we are getting close to the climax https://cimg6.ibsrv.net/gimg/www.mia...5bbc0a2ed0.gif

LittleCarBigFun 05-17-2018 04:48 PM


Originally Posted by miataman04 (Post 1482660)
I would consider this to be a love/hate relationship.

Seems to be pretty spot on. Ordered the jumpers as I opened up my MS and there is most definitely no jumper on the vtps nodes.

99blkx 05-18-2018 07:20 PM

Is this car revving yet?

LittleCarBigFun 05-18-2018 07:22 PM

Not yet, unfortunately. I'm going to try and run stuff on MAP only until the jumpers for the tps come in.

EDIT: Turns out I didn't configure the Megasquirt to run on the GM IAT sensor and that was preventing it from revving. She'll rev up now but still has a fair amount of hesitation. Just need to mess with the Fuel VE table a bit it seems

concealer404 05-21-2018 10:01 AM

I would not advise putting any effort into making it do things until you have a working TPS.

LittleCarBigFun 05-21-2018 12:53 PM

Makes sense. Even got the jumper on the vtps nodes and that did nothing. Double checked the wiring and nothing. But I did also find out the shop didn't plumb my intake idle tube into the piping, which was causing bad idling. I'll have to rig something up

concealer404 05-21-2018 12:54 PM

Skunk2 intake manifold and NB IAC setup.

LittleCarBigFun 05-21-2018 12:56 PM

That won't work on my dumpster fire 1.6 though will it?

concealer404 05-21-2018 01:00 PM

Oh that's right.

Ok then source UK market NB 1.6 manifold and throttle body.

LittleCarBigFun 05-21-2018 01:13 PM

Gotcha, gonna be a tough look for one those. Thanks!

concealer404 05-21-2018 01:15 PM

Probably easier to do a VVT swap and leave it n/a.

LittleCarBigFun 05-21-2018 01:16 PM

Eh, if I swap it, it'll be ecotec. And for that I'll leave it at my local shop while I'm on deployment. 6 months should be plenty of time for that.

concealer404 05-21-2018 01:18 PM

One bad idea to the next. I like it. You go hard.

mreakus 05-21-2018 01:18 PM


Originally Posted by concealer404 (Post 1483277)
One bad idea to the next. I like it. You go hard.

:bigtu:

LittleCarBigFun 05-21-2018 01:19 PM

Is there something wrong with the ecotec swap?

concealer404 05-21-2018 01:22 PM

Probably hard to find in the search function amongst all the Brain/18psi/Concealer404 circle jerks, but you'd probably have had to intentionally avoid every mention of "Ecotec" on various Miata forums to miss them.

Which also makes the idea pretty obviously un-researched.

LittleCarBigFun 05-21-2018 01:33 PM

Alright, alright. I've looked it up multiple times before but haven't heard much in the way of bad reliability. I know the engine mounts are harsh and it's not the best for the street, but it seems like a great bump in power.

andyfloyd 05-21-2018 01:42 PM


Originally Posted by LittleCarBigFun (Post 1483282)
Alright, alright. I've looked it up multiple times before but haven't heard much in the way of bad reliability. I know the engine mounts are harsh and it's not the best for the street, but it seems like a great bump in power.

I think the ecotec is a POS junk motor personally. K series swap is the one to go with IMO.

concealer404 05-21-2018 01:44 PM

I agree. This car needs a K swap.

LittleCarBigFun 05-21-2018 01:50 PM

Maybe this time around I'll just go with "to hell with budget". Spend the money once. Even though I already spent it...

concealer404 05-21-2018 01:53 PM

Now you're thinking with your dipstick, Jimmy.

18psi 05-21-2018 01:55 PM


Originally Posted by concealer404 (Post 1483281)
Probably hard to find in the search function amongst all the Brain/18psi/Concealer404 circle jerks, but you'd probably have had to intentionally avoid every mention of "Ecotec" on various Miata forums to miss them.

Which also makes the idea pretty obviously un-researched.

don't drag me into this. I don't ecotec or even kswap circle jerk.
I just tell everyone to turbo their BP :party:

concealer404 05-21-2018 01:57 PM

Nah i mean in general. There's nothing in the search function here besides you and i participating in a good old fashioned Dutch Rudder.

DrKarrot 05-24-2018 01:10 AM

This car now belongs to me. I have no need for a second MKturbo Miata, and the most prudent move would be an immediate part out and transfer of the good bits to my car. That, howvever, is no fun and would be a sad end so I am going to make a concerted effort to getting it moving.


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