Page 2 of 2 FirstFirst 12
Results 11 to 15 of 15

Thread: 2014 Chevy Cruze 1.4T - Where do I start

  1. #11
    Lifetime Member HellKnightHicks's Avatar
    Join Date
    Mar 2011
    Posts
    268

    Default

    I don't see any changes to the commanded Tq in that tune.

    Additionally there are some extra tables mine doesn't have.

    Looks like your file is for a 2.4L according to the Vin data. The Tq Models are a bit different.
    It does have the turbo tables. But according to the Vin doesn't have a Turbo..
    Last edited by HellKnightHicks; March 6th, 2019 at 03:05 PM.

  2. #12
    Lifetime Member
    Join Date
    Mar 2006
    Posts
    4,798

    Default

    E78s were never used with the 2.4, GM uses the same engine codes for multiple engines. That's a 2014 Sonic RS 1.4T file.
    ~Erik~
    2013 Sonic RS Manual - 1.4L I4T E78, starting the mods
    2008 TrailBlazer SS 3SS AWD Summit White - LS2 E67/T42, bolt ons, suspension, etc.
    2002 Chevy TrailBlazer LT 4X4 Summit White - 4.2L I6 P10, lifted, wheels, etc.

  3. #13
    Member
    Join Date
    Dec 2005
    Posts
    96

    Default

    I just verified that the VIN matches the "Cruze Stock Tune_0001.ctz" that you posted above, but I made some changes based on what I have in my tunes. Maybe you need to recheck the tunes you have posted here. I am using the latest V7 software for the tables listed.
    04.5 2500HD LLY EC/LB
    14 Sonic RS Sedan
    GM Certified Technician
    President of the 'I killed an ECM' club

  4. #14
    Lifetime Member HellKnightHicks's Avatar
    Join Date
    Mar 2011
    Posts
    268

    Default

    I must have been comparing it to one of my other tunes by accident. Im sorry about that. It was late when i saw the response.

    Went threw it table by table and moved things over. I had gained some level of understanding from reading here and there on the forum. But looking at this tune I can definitally see that my intuition about the Tq response Tables were correct as far as pedal feel goes any way.

    I notice some smoothing of the Estimated Compressor speed B7002 table was that just because you like a smooth table or because the stock data was wrong..... Or both?

    B7008 Boost Open/Closed Threshold being higher values does that mean the AFR will no be adjusted.... As it enters Closed Loop?
    Last edited by HellKnightHicks; March 7th, 2019 at 08:27 AM.

  5. #15
    Member
    Join Date
    Dec 2005
    Posts
    96

    Default

    I believe the table data on B7002 could be wrong. It has a nasty spike in 2 cells or so. B7008 just tells the ECM when to start predicting what boost will do and be prepared to step in and make adjustments. It activates the PID tables associated with boost.
    I have several files to help with tuning and logging I could send. We don't have nearly the tables and scanner PIDS needed to REALLY tune these cars.
    We don't have V8's so we get the crumbs of the attention. E78 in the trucks had way more attention to available tables and DMA PIDS. Just my .02
    04.5 2500HD LLY EC/LB
    14 Sonic RS Sedan
    GM Certified Technician
    President of the 'I killed an ECM' club

Page 2 of 2 FirstFirst 12

Similar Threads

  1. 2014 5.3 swap won't start
    By Genvswap in forum E39, E80, E82 & E92 SIDI ECM's
    Replies: 19
    Last Post: February 2nd, 2016, 11:40 AM
  2. "Staged Upshifts" in older T43's akin to the ZL1 and 2014 Chevy SS
    By T2000 in forum 6 speed/8 speed RWD/FWD Transmission Tuning (incl T43, T76, T87)
    Replies: 5
    Last Post: February 8th, 2015, 10:37 PM
  3. HELP URGENT!! 2014 silverado e92 checksum failure/no start
    By RedlinePerformance in forum E39, E80, E82 & E92 SIDI ECM's
    Replies: 7
    Last Post: November 26th, 2014, 03:27 PM
  4. 2013 Chevy Cruze - US diesel ECM location
    By wrenchwench in forum General (Diesel)
    Replies: 0
    Last Post: December 5th, 2013, 08:46 AM
  5. 2014 Chevy Cruze Turbo Diesel
    By comnrailpwr in forum General (Diesel)
    Replies: 48
    Last Post: November 28th, 2013, 01:40 PM

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •