Why does my ls1lt1 backfiring thru the intake?

Why does my ls1lt1 backfiring thru the intake?

If it back-fired hard enough, it’s possible it damaged the MAF sensor. Try unplugging it and see if it runs better. Maybe it jumped time?? If it’s got some slack in the timing chain, it could pop back through the intake…

Why does my Opti go through the intake?

If it’s got some slack in the timing chain, it could pop back through the intake… some of the sea foam could have went down on the opti if he went through the intake,or maybe it screwed the o2 sensors, hard to say. Check your plugs to see what they look like.

What causes a car to backfire through the intake?

In my long extensive experience with carbureted cars, If you backfire through the intake it could be caused by a couple of things… 1. Burnt valve or broken/weak valve spring. 2. two of the ignition wires are crossed up or the opti has a crossed up connection inside the cap…

What’s the problem with my 94 Camaro LT1?

94 Z28 LT1 Camaro. Intermittent stalling/starting problem. Been haunting me forever 94 Z28 LT1 Camaro. Intermittent stalling/starting problem. Been haunting me forever. Typically my car will start fine when it’s been sitting overnight. Then I’ll drive to the gym which is 2 miles away.

Why does my ls1lt1 pop through the intake?

If it’s running lean enough to pop through the intake you should be noticing a big lack in power and hesitation before it pops. My guess is you got moisture in the opti causing the cap to arch or screwing up the trigger wheel.

Can a year of LT1 cause ignition issues?

On your year of LT1, ignition issues can pretty much be boiled down to these two things (as you are describing). Just because you’ve replaced the ICM, does not mean it isn’t at fault. Usually the way the engine dies with an ICM fault is it well just dies.

Is the ICM on my LT1 at fault?

There are two places this could be: ICM or Optispark. The intermittent nature of it leads me to believe it is ignition related. On your year of LT1, ignition issues can pretty much be boiled down to these two things (as you are describing). Just because you’ve replaced the ICM, does not mean it isn’t at fault.