Sniper goes dead lean right off idle

Author: luod

August undefined, 2024

Web9 Dec 2024 · It seems like the Sniper is trying to control idle and closing the IAC to bring RPM down. But at that time the RPM are at 2200 down to 1800. So idle control shouldn't be active correct? Is correcting the lean spike as simple as adding fuel to that area of the table since it's in deceleration and not Learning at that point? Web1 Dec 2024 · Verify with a pressure gauge that you are getting 60 psi at the Sniper. Don't assume that a new-ish regulator is correct. With a helper, remove the air cleaner and have …

Holley Sniper EFI suddenly severely overfueling Team Chevelle

Web16 May 2008 · reinstall the carburetor and setup your idle system. Before you start the engine, examine the fuel bowl side of the throttle body. Hopefully you'll see a little tube, covered by a rubber plug. This vacuum port connects with a passage in the throttle body that 'sees' manifold vacuum. Web29 Mar 2016 · It goes DEAD LEAN as soon as I try to pull out of the driveway! It basically dies and lean pops through the intake. It absolutely runs like a pile of crap!!! I'm using the … chat gpt login on

Holley Sniper Tuning IH8MUD Forum

Web11 Oct 2024 · For example, there is one case at 1000 RPM where the timing is 23° at idle and then jumps to 34° at 1000 RPM at about 90 kPa. This can cause poor running or a misfire that will cause a false lean reading at the WBO2 sensor and then system tries to keep up … Web14 Aug 2024 · Idle is set at 725 rpm Click to expand... Hello. If tweaking the Acceleration Enrichment doesn't clear it up you might just need to wait for it to do some more learning. And if that doesn't work out you might need to do some hand-tuning on the laptop. When you hammer it, watch the air-fuel mixture display and see if it's going rich or lean. Web19 Apr 2004 · The quad runs great except for a dead spot right off of idle. It runs great at wide open throttle. No hesitation upon deceleration. Accelerates great. But if I give it just a … custom golf cart seats near me

Very Light Tip-In Lean Stumble - Holley Performance Products …

Odd AFRs Right Off Idle - Holley Performance Products Forums

Web5 Nov 2024 · Cam is a solid lift 237/[email protected]. 12 inches of vacuum at 900 rpm idle. Transmission is a manual 4 speed. NP435 which has large ratio changes between the gears. The stumble happens around 1200rpm. If I’m just easing around and run the rpm up to 1800 in 2nd then change to 3rd the rpms drop to 1200. WebSwitch the power to the Sniper off. ... if the temperature displayed on the handheld is still above 160 degrees the engine should go right to it's target. The IAC should display a 2-8% to bring the idle up to the actual target. ... Also its extremely rich at idle. Is there away to lean the idle out? I'm new to the efi thing and any help would ... custom golf cart seats logoWeb19 May 2024 · This fixed the high throttle position sensor reading (TPS) of above 1% that likely caused my idle issues 4. Used a shopvac on blow attached to the muffler, and with … custom golf carts for sale ohio

"Web22 Feb 2010 · The valve will open up just before the engine goes wild-lean, and stay open as long as the vac stays below 8.5". Then the main system should be fully operational by … " - Sniper goes dead lean right off idle

Sniper goes dead lean right off idle

How To Cure Carburetor Stumble - Holley Motor Life

Web25 Mar 2015 · Some of your PE functions need work. (you have a 3200 rpm delay combined with 100% TPS, Not bueno for reving or WOT). Your spark tables need work as well. Your MAF is partially failed. Your TPS needs to be reset or your TB position screw is off or cable is hanging, probably just needs to be reset. Web22 Nov 2024 · That's what you need to keep an eye on since the idle fuel pressure might be fine while fuel pressure at WOT is too low. 600 HP requires 300 lbs of fuel per hour or 50 …

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Web5 Jul 2012 · This assembly delivers an initial shot of fuel in the right amount, and duration, to provide crisp throttle response right off idle. Hesitation, backfire and lean conditions can …

Web20 Dec 2024 · Once I knew timing was where I wanted it (12* BTDC) I tuned the idle, TPS, and IAC for about an hour to get the right values. All that was involved was tuning the idle until the IAC was somewhere around 10%, turning the truck off to reset the TPS back to zero (it resets when powered off) and starting the truck again to watch the idle RPM (850- ish), … WebBackfires - Popping on deceleration for a lean idle circuit or backfires in general. Runs on choke - The vehicle may run on choke when it's warm but stalls if the choke is turned off. Idles poorly - Fluctuations in idle RPM, stalling Engine runs hot - Due to more oxygen than fuel combustion temperatures are hotter reflecting on a temp gauge.

Web7 Dec 2024 · AFR Lean Spikes at Idle. 12-07-2024, 06:18 PM. Hello everyone, I'm having some lean AFR spikes during hot idle. I'm using my Holley Sniper on a 1973 VW Super … Web16 Feb 2024 · injectors seem to be spraying fine when looking into the throttle body and getting it to go lean. Using MSD and 6al and timing control. Ive locked the timing in the …

Web18 Jan 2013 · The engine idles nicely and has the most vacuum with the carb dialed in around 13.5-14 afr, but just verily crack the throttle and it goes dead lean 16-18afr. After I …

Web17 Mar 2024 · Now go manually add fuel to the same area of your fuel table all the way back to just below where your idle is to eliminate the mismatch because as we know it will not compensate or learn those areas upon deceleration. Add fuel in 5 lbm/hr increments and then note the mismatch. Adjust as necessary. See if it still stalls. custom golf carts in floridaWeb11 Aug 2024 · With the engine at full operating temperature you should be able to stick your finger in the IAC inlet port on top of the throttle body and the engine should simply idle down about 50 RPM below your programmed idle speed. If it dies or drops more than 50-75 RPM the throttle is closed too far. custom golf carts in mesa azWeb31 Dec 2024 · If you're dumping fuel in and it doesn't ignite, then it's not consuming the oxygen, so you can show lean no matter how much fuel you're putting in. Usually it's normal to not use fuel on decel for emissions/mpg purposes … custom golf cart seat upholsteryWeb13 Oct 2024 · 10-13-2024, 09:43 PM. Look into RoC Blanking (Rate of Change Blanking). If the Acceleration Enrichment is a active during light cruise and/or seemingly steady … custom golf carts myrtle beachWeb21 Apr 2024 · Make sure you wire the ground and power feed from the sniper directly to the battery. Not thru the starter, not thru the solenoid, not sharing a ground with anything. Directly to the battery. This will eliminate 95% of EMI/interfence/power/voltage issues. 2. I have tried several intake manifolds and both are dual plane. chat gpt login notWeb8 Mar 2010 · The transition circuit is fed by the idle feed restrictions and controlled as well by the idle air bleeds, by lowering the idle air bleeds you will enrichen the transition circuit … chat gpt login toolWebIDLE / LIGHT CRUISE: 13.5 AFR - target with GREEN mode ... 13.5 AFR (off-road vehicles) Most stock to slightly modified engines will run just fine at an AFR of 14.5:1 and yield better MPG. If you prefer better PERFORMANCE then we suggest to run an AFR of 13.5:1 or even richer to around 13:1. ... Mode, Left and Right Buttons - Buttons are used ... chat gpt logins free