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Type: Posts; User: Carlfromkerikeri

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  1. Throw a single turbo on it, cheap 76mm T4 with...

    Throw a single turbo on it, cheap 76mm T4 with .96 or 1.05 AR turbine . I have a 2003 lq4, flex fuel injectors, std bottom end and stock cam, stock converter, hd2 trans kit, t76 Chinese turbo with...
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    You should have the MAF dtc set . Mine did...

    You should have the MAF dtc set . Mine did exactly the same when I had a sensor failure. Try unplugging the map sensor and read codes, if there is still no codes start unplugging every sensor one at...
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    Use the compare function and check the ignition...

    Use the compare function and check the ignition spark table speed cut off, yours it set to 8kph? And the afr table, have you confirmed that you have the MAF dtc’s when you have ignition on and do a...
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    Here is a copy of my 2004 lq4 turbo 2bar sd tune...

    Here is a copy of my 2004 lq4 turbo 2bar sd tune running gen4 injectors. Your afr should be 14.7 across the board, spark table cut is around 8kph, this tune has been running for several thousand...
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    Just a thought? My lq4 turbo wouldn?t fire due to...

    Just a thought? My lq4 turbo wouldn?t fire due to a failed map sensor, it wasn?t throwing a code either, found it was stuck at 1.4 volt , I am on mobile so I cannot look over tune .
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    I?m running a gen5 Turbosmart hypergate 44mm...

    I?m running a gen5 Turbosmart hypergate 44mm wastegate directly off the merge pipe to t4 flange with a T76 single turbo, angled to flow in same direction as exhaust, with 5psi spring, as it comes off...
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    I agree with the previous, 2bar os, no maf,...

    I agree with the previous, 2bar os, no maf, decent 2 bar map sensor, correct injector data if changing, wideband O2 sensor to tune. Dial in fuel VE table first at lower map areas then slowly move...
  8. Check/suggestions on tune lq4 turbo

    Hi, can anyone please check and advise their thoughts or suggestions for my tune, lq4 with t76 turbo, 5lb spring, 2 bar sd tune. Regards Carl 118527[ATTACH]118528[/ATTACH
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    Spark fluctuations at 1600

    2003 LQ4 6.0 with T76 turbo and 5lb external wastegate, just got running, 2bar SD os. Still fine tuning, noted the other night stuttering or feeling like miss at light throttle around 1600....
  10. Issue found to be map sensor, 5v feed from ecu...

    Issue found to be map sensor, 5v feed from ecu with map unplugged and as soon as it was disconnected fault codes showed. Once map reconnect voltage drops to 1v key on ignition off. Have ordered new...
  11. P59 no start after turbo installation

    Advice required: p59 6.0 l suburban was running fine on 2 bar SD for months. Pulled off road and installed turbo with forward facing 1/78 primary headers and single t76 turbo , extended vehicle loom...
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    If you have an older vehicle you can either...

    If you have an older vehicle you can either purchase a serial to USB connector and add a channel to your scanner, goat rope garage on you tube has a good example, alternative is to wire through egr...
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    Hi, I would change the power enrichment to no...

    Hi, I would change the power enrichment to no delay and enable at lower revs, then watch the goat rope garage you tube videos to fine tune both the maf and VE tables before touching any spark. If you...
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    Don’t have my laptop to look over the tube at...

    Don’t have my laptop to look over the tube at present, Check that your EQC ratio verses etc table is commanding 14.68 (1) at the temperature that you saw it running 12afr first, it’s under the open...
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    I think a 3 bar map sensor will give wrong values...

    I think a 3 bar map sensor will give wrong values for the 2 bar os tune
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    Hi bob, have a look at goat rope garage on...

    Hi bob, have a look at goat rope garage on YouTube, they have some great videos that will teach you some basics and they have some really good information on gen3 tuning. They also have a video on...
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    Try turn key on, start scanning, flick key to...

    Try turn key on, start scanning, flick key to crank starter for split second without actually starting, see if that reads map
  18. The right hand rocker cover line should be a...

    The right hand rocker cover line should be a ?fresh air? side of the ventilation system where it allows a controlled amount of fresh air into the engine, and the left hand rear rocker cover has a...
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    Down here in New Zealand we are around $2.40 per...

    Down here in New Zealand we are around $2.40 per litre of 95 octane,( or $10.80 per gallon )....
    I?m running 2bar SD with maf failed properly and have adjusted ve table to be fractionally lean at...
  20. If you are logging a wideband for afr error, no,...

    If you are logging a wideband for afr error, no, pe won’t effect your calculations as it’s the error percentage between what the ecu is commanding and what the wideband is reading as actual. Goatrope...
  21. If you have failed the MAF properly it will be...

    If you have failed the MAF properly it will be running on the low octane spark table, which is why when tuning SD VE table you need to copy the high octane to the low octane table, if you complete a...
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    Use the compare file function with the stock...

    Use the compare file function with the stock file, it is likely the engine coolant temperature vs closed loop enable.
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    P59 hard shifting in SD

    Hi, looking for advice, 2004 Chevy 6.0 p59 ecu with 2bar Sd OS applied. Transgo shift kit installed so it?s waay too aggressive shifting when maf is failed.

    On failing maf correct with mil on...
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    I purchased an AEM 300 series wideband that I log...

    I purchased an AEM 300 series wideband that I log through a serial to USB connector to my laptop, it works great and was easy to setup. Goat rope garage on YouTube has a good video on how to setup...
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    Check out Goat rope Garage on you tube, he has...

    Check out Goat rope Garage on you tube, he has some great gen3 stuff.
    5FDP (member) gave me some really good advice on my electronic throttle settings and torque management, still a heavy truck but...
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