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What have you done to your car today?


Guest keltik

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Not meaning to point fingers or be rude, but my reaction in that situation would throttle off, trail brake and gently steer back into the lane.

Either way speed (I HATE using that word in relation for accidents) seems like the main cause. Reminds me of the weekend, and watching a good friend ride his motorbike - he's trying too hard to be fast on it, vs being smooth. I think learning to be smooth before you learn to be fast is the best, cos being fast (on sealed roads) is being smooth in my opinion. Plus also this bike is a 650cc twin Hyosung, that is de-restricted, and the dude is on his Learners...was a sharp price for the bike, but it's waaaay out of his league for a learner.

 

Edit: I suppose I could throw up a build thread of the Mazda @1randomkiwi. Do have some Quality of Life things (for me anyway) that I'll be doing to it.

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10 hours ago, Kiwi_Fozze said:

More delays, getting beyond steamed, further action pending. Im annoyed now. 

 

I'm going to wildly speculate and ask if this is yet another case of a pseudo-"performance" workshop being a bit s***?

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Finally bit the bullet and got myself some flares coming from the UK, it was that or wide-body...been 10 years going back and forwards on the two. Also ordered a origin-labo gt wing and grabbed a turbosmart BOV to replace my very old/crappy greddy bov...

 

Now just gotta send it off for a re-tune in the mean time and get the last of the gremlins sorted. Then lastly figure out what wheels will fit...

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2 hours ago, boon said:

 

I'm going to wildly speculate and ask if this is yet another case of a pseudo-"performance" workshop being a bit s***?

As to the being a bit s**t, yes. 

 

To the rest, I can neither confirm nor deny until resolution

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Dropped RS in today to fix noisy tappets/lifters.

While engine is out, upgrading to vf30, hyperflow topmount, 850cc injectors and link install (after sitting in  my room for 1 and a half years). When in Rome i guess...🙄

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So after quite a while trying to find where my over fueling issue at idle is, and potentially my issue also with my fuel pump staying on all the freaking time, its come down to something rather... Simple, yet so annoyingly hard to find. 

 

The wiring in my RA is stopping my ECU from seeing full voltages. it's getting 9.4-9.8v MAX. and it's still running which is amazing to be honest. 

 

Now, you may ask, why would this cause an over fueling issue?

Brilliant question! 

ECU's control the injector dead time, with voltages.

The lower the voltages, the greater the dead time. the higher the voltage and the faster dead time. As seen below and explained brilliantly by link. 

So as you can expect, the lower the voltage the ECU sees, is the absolute highest it could be expected to output.

 

Fc4izQm.png

 

Soooooo How am I going to solve this? Well eliminate the wiring harness entirely for 12v delivery to the ECU, but not only for that for for the fuel pump, Can Lambda wideband, Fuel pressure sensor, Flex Fuel sensor, and oil pressure sensor.

 

Due to the above, this is how I came to doing this. 

 

RIE43VS.png

 

 

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1 hour ago, Dairusire said:

Soooooo How am I going to solve this? Well eliminate the wiring harness entirely for 12v delivery to the ECU, but not only for that for for the fuel pump, Can Lambda wideband, Fuel pressure sensor, Flex Fuel sensor, and oil pressure sensor.

Looks mint! but 12v to pressure sensors?

I'd also think about an additional relay for injectors and coil, then you know the injectors are at the same voltage as the ecu is seeing

 

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2 minutes ago, pl0x said:

Looks mint! but 12v to pressure sensors?

I'd also think about an additional relay for injectors and coil, then you know the injectors are at the same voltage as the ecu is seeing

 

Yep, the honeywell 150psi sensors require a 12v feed. 

I've tested the ignition coils and that's seeing things properly. 

It's just ECU voltage line that's the issue at this stage, but I'm taking the initiative to do the other things too, since I'm already there lol

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On 24/05/2019 at 1:04 PM, Dairusire said:

So after quite a while trying to find where my over fueling issue at idle is, and potentially my issue also with my fuel pump staying on all the freaking time, its come down to something rather... Simple, yet so annoyingly hard to find. 

 

The wiring in my RA is stopping my ECU from seeing full voltages. it's getting 9.4-9.8v MAX. and it's still running which is amazing to be honest. 

 

Now, you may ask, why would this cause an over fueling issue?

Brilliant question! 

ECU's control the injector dead time, with voltages.

The lower the voltages, the greater the dead time. the higher the voltage and the faster dead time. As seen below and explained brilliantly by link. 

So as you can expect, the lower the voltage the ECU sees, is the absolute highest it could be expected to output.

 

Fc4izQm.png

 

Soooooo How am I going to solve this? Well eliminate the wiring harness entirely for 12v delivery to the ECU, but not only for that for for the fuel pump, Can Lambda wideband, Fuel pressure sensor, Flex Fuel sensor, and oil pressure sensor.

 

Due to the above, this is how I came to doing this. 

 

RIE43VS.png

 

 

But then we checked voltage to the pin and it was allgeezy. so it's basically just because it's a link.

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Could well be a ground,issue. Would probably pay to chuck one of those aftermarket grounding kits on. When you eventually relocate the battery and direct feed the fuel pump you’ll resolve that end too




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In terms of root issue however, if getting good stable feed at pins (measure resistance too, as you would when checking for solid grounds when installing an amp for example) but link reporting much less then either software bug or some power distribution issue. Either way you ain’t got fuel speed controller so just direct feed that sucker with fuse/relay , chuck in a #racecar like pump prime / kill switch too

Doesn’t link have some diagnostic / testing mode for the injector controls? I recall seeing something like that when playing around with mine


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