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idle surge

  1. S_39

    GVR-4 Galant VR4 Doesn't Idle Properly

    Yet another bad idle post....My Galant VR4 that I bought earlier this year (and had a plethora of issues with it that I have been solving 1-by-1) is having issues with its idling. When the engine is cold, the car doesn't even start or idle without me pumping the gas and holding it above 800rpm...
  2. Jonnychance

    420A High idle

    I took of the battery and tray to get through to the fill plug for the transmission. Couldn't get it off that way, so I put the battery back in to get the car lifted up again. Now its revving to 2000rpm on it's own, itll jump to 2300rpm when I start it. It goes down to normal, then after a bit...
  3. ECMlink Infuriating Idle

    Hello all, This car is too much fun! and now that I have had some fun, I really want to get this thing dialed in to perfection. I am following this guide here: Tune Speed Density W/O MAF.If I am reading this document correctly, after setting up ECMLink and all of my Speed Density (SD) sensors...
  4. all black 4G63

    General First start up Idle surge 1G

    hello, I have read through a lot of post about idle surge, but my test are not bringing me to isolate the cause.This is the first time this engine has ran after a full rebuild. The CAMs are: Intake 264 and Exh 272 HKS.The ECM is 92 AWD 4G63T (stock)The IAC is new (replaced) and the TPS...
  5. 1G 4g63 Non-Turbo Idle Surge ONLY in Neutral

    Recently replaced the head gasket & rebuilt the head of a 4g63 NT '94 Talon. Replaced the IACV as the last one was measuring out of spec (actually, just shorted the entire thing), with a used one off eBay and it has been significantly better.The one thing I can't figure out, is why it idle...
  6. Idle Surge Posible Cause cracked FIAV

    Hey guys. So ive been having some real trouble with idle surge over the past month or 2. I followed terrys idle surge guide to a T and still had found nothing so I post this in hopes it may help someone... I had tried everything except a full fiav block off. IAC, TPS, wiring, etc... So finally i...
  7. 1G Idle surge...

    I know this has been covered thousands of times on here but ive gone down the checklists and nothing really seems to be working...91 talon tsi awdHaveing really bad idle surge issues. Performed boost leak test and fixed leaks but it hasnt changed the idle a bit. Changed tps, isc, and even...
  8. smbgsx

    2G idle surge/stumble on snap throttle/cruise&boost fine to 150mph

    1995 gsx fp2 cams 6-bolt magnus bottom end (compression test yesterday: All cylinders = 95psi first crank, 168-175psi after 5 cranks. throttle 100% open.) fp3052 turbo (garret gt3076 with different hotside) external wg with dump pipe coil on plug conversion (no ignition box) front mount id1700's...
  9. Anthony Boni

    ISC wiring

    Hello,I have a 90 TSI with a 91+ throttle body. I'm having many issues with my ISC position in DSM Link V3. It reads 120 when the car is cold but rapidly descends to 0 and stays there. I cannot put the car in "ISC adjust" mode because the car idle surges like mad and eventually dies. I'm...
  10. Rekadae

    ECMlink ECMLink Tuning Idle Surge?

    In ECMLink my RPM appears to be going up and down.BoV is atmospheric, no speed densityTPS is set with linkAdjusting BISS Screw did not get rid of itMy tuner says he has not encountered this before and is curious as to what it might be suggested I post it on the forums to ask around. He...
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