Undrivable after installing NA-Tune
#31
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I guess I do not know the stereotypical implications of vaping but OP may just not have gotten results from a smoke test... because he did not use smoke. Water vapor might not make the trip through the system intact so you can see it coming out the leak the way smoke does (or I think the way mineral oil vapor does).
-J.
-J.
#32
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Oh !
You've no idea what he does and how he does it, otherwise you too could be well respected, successful and in high demand tuning engines, as opposed to handing out jibes with your favourite insulting word "turd".
There's plenty of people on here and worldwide Doug that would not say no to an increase in N/A Engine power with +40bhp from factory figures.
It's Impressive and you are clearly being rude.
I look forward to hearing the outcome if the OP can get this MAF issue found and the car running correctly, and what any differences there may be? and a power figure would also be interesting should he dyno the car.
R
You've no idea what he does and how he does it, otherwise you too could be well respected, successful and in high demand tuning engines, as opposed to handing out jibes with your favourite insulting word "turd".
There's plenty of people on here and worldwide Doug that would not say no to an increase in N/A Engine power with +40bhp from factory figures.
It's Impressive and you are clearly being rude.
I look forward to hearing the outcome if the OP can get this MAF issue found and the car running correctly, and what any differences there may be? and a power figure would also be interesting should he dyno the car.
R
#33
Roger...I DO know what your guy did and how he did it, and its nothing impressive. Maybe to you it is. I tune cars... and not just 944's 😂I wont say anything else. Those who know me know what I do and I have zero interest in rehashing this with you. Your car came out nice. But if you think you can convince me the results wouldnt have been better with a better ecu...well, no sense in arguing..Dont get so butthurt over objective fact.
The demand for people that REALLY know how and what to do is very high not just here but worldwide, only we also have thousands of companies and people here that also class themselves as Engine Tuners, but very few are as good as the highly acclaimed elite, and some are just full of it!
Maybe you can sort out this NA Tune first for the OP ?
R
#34
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I just don't understand why exactly <insert replacement ECU brand/type> is superior, if everything is equally adjustable.
I seriously do not see the point to rewiring the whole engine bay for sensors it's already got just moved to other locations, to get results that could've been attained with an Ostrich.
What can they do that Motronic can't, other than coil packs or COP? And why exactly is that better? Ignition Timing is adjustable on Motronic.
I seriously do not see the point to rewiring the whole engine bay for sensors it's already got just moved to other locations, to get results that could've been attained with an Ostrich.
What can they do that Motronic can't, other than coil packs or COP? And why exactly is that better? Ignition Timing is adjustable on Motronic.
#35
I just don't understand why exactly <insert replacement ECU brand/type> is superior, if everything is equally adjustable.
I seriously do not see the point to rewiring the whole engine bay for sensors it's already got just moved to other locations, to get results that could've been attained with an Ostrich.
What can they do that Motronic can't, other than coil packs or COP? And why exactly is that better? Ignition Timing is adjustable on Motronic.
I seriously do not see the point to rewiring the whole engine bay for sensors it's already got just moved to other locations, to get results that could've been attained with an Ostrich.
What can they do that Motronic can't, other than coil packs or COP? And why exactly is that better? Ignition Timing is adjustable on Motronic.
Bether ignition and fuel tabel resolution, faster ecu = more response ( if tuned right )
I can add limp mode, if the temperatures is of, EGT, boost, oil temp,water temp and so on.
I cant get launch controll in standar ECU.
A good tuner will not only give you HP, but reliability on the tuning.
#36
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For an NA car, I'd argue that the benefits are minimal and probably not worthwhile unless you are very serious about tweaking and tuning. For me, that's true, I can't leave well enough alone and wanted full control. The stock system is also unreliable and getting some of the replacement parts is a used part crapshoot. I'm very happy with my setup and don't miss the limitations of Motronic, but I wouldn't recommend it to the "how can I make my NA more powerful" crowd, who almost always want a silver bullet at low cost and low effort.
#38
Odonnell For an NA car, I'd argue that the benefits are minimal and probably not worthwhile unless you are very serious about tweaking and tuning.
This is also what I was advised & told unyet I was reasonably serious about the tune, but having expected 185 was more than happy with 205bhp but the answer to "how serious anyone is" normally comes down to money & Budget.
Odonnell For me, that's true, I can't leave well enough alone and wanted full control. The stock system is also unreliable and getting some of the replacement parts is a used part crapshoot.
Yes there are a few like you on this and other forums constantly dabbling
and experimenting etc..no harm in this if it's your hobbie and interest, however some people just don't have the patience or time to chase the enth degree. I've done my car with lots of effort but once it was finished, that's it done and dusted, great results and no issues, Finito.
I doubt I'll ever consider more power if I did I'd go twin cam and ITB's but looking at the Turbo route on here and again Uk forums really puts me off as it seems a right constant faff which I could not be doing with!
I've had 8 Porsche transaxles and must be lucky as I've never experienced yet any electronic unreliability at all.
It's never easy to obtain large enough horsepower gains on N/A engines like it is so easy on Turbo cars, but hence this is why I went with a Double whammy, (more power and less weight) so I get a car that matches and surpasses the faster stock blown 951 and I would also suggest to anyone this route works well together.
R
#39
Yes there's always one that flails I with Rude comments, etc..
MistaX has asked a Good question :
[QUOTEI just don't understand why exactly <insert replacement ECU brand/type> is superior, if everything is equally adjustable.
I seriously do not see the point to rewiring the whole engine bay for sensors it's already got just moved to other locations, to get results that could've been attained with an Ostrich.
What can they do that Motronic can't, other than coil packs or COP? And why exactly is that better? Ignition Timing is adjustable on Motronic. ][/QUOTE]
R
#40
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I am changing to EMU ECU on my 951 for a ton of reasons.
Bether ignition and fuel tabel resolution, faster ecu = more response ( if tuned right )
I can add limp mode, if the temperatures is of, EGT, boost, oil temp,water temp and so on.
I cant get launch controll in standar ECU.
A good tuner will not only give you HP, but reliability on the tuning.
Bether ignition and fuel tabel resolution, faster ecu = more response ( if tuned right )
I can add limp mode, if the temperatures is of, EGT, boost, oil temp,water temp and so on.
I cant get launch controll in standar ECU.
A good tuner will not only give you HP, but reliability on the tuning.
But that's a custom build on an engine that never came from the factory with a turbo, built by someone who didn't exactly know what they were doing, with no documentation and no comparable cars.
An N/A 944 is a simple thing that doesn't need all that. If I were planning on throwing a junkyard turbo on this car I'd be there with you but I'm over that. I have a lot more effort and money in the '44 and I've been trying to do everything "right" so that it doesn't become an unreliable pile that only works when the stars align. (I've thought about turboing it, Callaway style, not anything 951 inspired because I'm not that dumb, but it's just not worth it)
Played locksmith today and swapped my old lock pins with my new late style door handle that doesn't match the passenger side. Pressure test soon, I know everyone's on the edge of their seats here.
Last edited by MistaX; 01-17-2017 at 07:40 PM.
#41
I just finished installing the NA-Tune today, and it... doesn't work.
Car starts, idles fine, but as soon as any throttle is applied it sputters, misfires, doesn't rev. Let off and it returns to idling fine.
Coincidentally my wideband stopped working a few days ago, so I'm out a decent diagnostic tool.
Car ran alright with the AFM.
Ideas?
Car starts, idles fine, but as soon as any throttle is applied it sputters, misfires, doesn't rev. Let off and it returns to idling fine.
Coincidentally my wideband stopped working a few days ago, so I'm out a decent diagnostic tool.
Car ran alright with the AFM.
Ideas?
#42
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It started working again a few days after that, and then went back to "---" after a week and it hasn't worked since. It's an AEM UEGO with a Bosch 4.9, been running it for ~a year.
I will be under the car when I replace the universal 1 wire O2 since I've had to build a new connector to swap to the later style factory 3 pin single connector heated O2, and certainly going to take a look at the wiring and the WBO2 itself while I'm in there.
There was a period of time where the car ran super rich when I had the FPR vacuum lines routed incorrectly, and that could've done a lot of damage to the sensor.
IF the car has a vacuum leak in the lines to/from the venturi like I suspect, it's possible it's been running rich for forever and I've been oblivious to it even with the wideband working, it would shorten the sensor's lifespan considerably.
Just armchair analyzing though. I really need to get in there and do work. Haven't ordered a replacement WBO2 because I'm not fully sure it's the sensor.
#43
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Pressure test done.
Vacuum leak is somewhere in this image:
Going to have to pull the intake. Probably #15 or it's connections.
Blowing vape smoke at the sound from the pressure test is extremely effective. Blows it away from the source of the leak.
Vacuum leak is somewhere in this image:
Going to have to pull the intake. Probably #15 or it's connections.
Blowing vape smoke at the sound from the pressure test is extremely effective. Blows it away from the source of the leak.
#45
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