Sniper first start, idling too high. - Holley Performance Products Forums Sniper EFI Tuning Tech May God's grace bless you in the Lord Jesus Christ '92 Ford Mustang GT: 385" 6 3L SBF, Dart SHP 8 2 block, Eagle 3 470" forged steel crankshaft H-beam rods, Wiseco 4 200" forged pistons, Trick Flow Twisted Wedge 11R 205 CNC Comp Ported heads, 12:1 compression ratio, 232°-244° duration 623" lift 114° LSA H R camshaft, Trick Flow R-Series FlowTech Induction Comp
EFI Idle Tuning Notes - Holley Performance Products Forums The bold numbers indicate idling with no load (13) idling in gear and or accessories on (15) The surrounding cells direct the engine idle back to the target idle cell (center) Study the diagonal pattern of the idle numbers; that's the secret to good Commander 950 Fuel Table idle tuning
Latest idle issue high idle after warmed up. - Holley Performance . . . So I've had a couple threads regarding my IAC, which I've replaced already, and I'm still having some problems with idling I've done the IAC tune as directed on here and Holley videos and IAC still seems erratic I'm still troubleshooting that Will start off idling fine, drive nice, then all of a sudden won't want to come down when decelerating
New Holley 4150 Idle Too High I have a brand new Holley 4150 carb and I can not get the idle down I have the idle mixture screws only 1 2 turn out, and I backed the high idle screw on the electric choke almost all the way out The curb idle screw is not even touching the throttle linkage and my car is idling between 1500 2000 RPM in park, and 1000 RPM in gear
Was running perfectly, now lean right AFR and idling high. At that point, I gave up on the made in USA "Scott" brand of plug wires and grabbed one of the LS376 480 OEM, straight boot wires and put it on The engine fired right up and the right AFR seemed to be much smoother idling in my driveway However, the fully warmed up engine still seemed to idle high; 1050 RPM vs the programmed 800 RPM idle
Two Quick Fuel Q-750 Problems - Holley Performance Products Forums Plugging any of the IABs while idling does nothing to the vacuum or the RPM Primary transfer slot is square Secondary idle screw is used to set the idle I don’t know exactly where this is on the transfer slot The car is a kit-Cobra and essentially spends 75% of its time in the primary idle and transfer circuit
Engine Vacuum vs MAP - Holley Performance Products Forums However, the disparity I'm seeing is, at idle, if I put a vacuum gauge directly to the intake manifold, it reads 14 5 inHg The readout on my Holley Sniper says I'm idling at 40 kPa 14 5 inHg would be around 52 kPa 40 kPa would be around 18 inHg
High Idle With Holley Sniper My Plymouth was idling high and would not come down until I hit the throttle The secondary spring was not strong enough and secondaries were sticking Tried to add another coil on the spring with great difficulty Ended up pulling on the end of spring and bending it on the support bracket enough to solve the problem
New Sniper 550-869K, high idle. - Holley Performance Products Forums When it's idling high, either you have a big vacuum leak or you have rear throttle blades that are not closing fully If it idles normally when cold and then acts up when warm, the rear blades are suspect When the idle is high, remove the air cleaner and try to manually force the rear blades shaft closed