Backfiring issue..

[House003]

First mistake was letting my mom drive my truck to work.. Now I get home and it's backfiring like crazy. It seems to only be coming from the drivers side tailpipe (true dual exhaust), so I've narrowed it down to the passenger side of the engine.. I pulled all the plugs and wires and got a spark from all of them.. So now I'm stumped. If you run it for a little bit you can smell the unused gas. There's also a check engine light on but I can't get my hands on a code scanner until tomorrow. Any ideas what this could be?? Thanks for the help guys

 

[Keepinitoldskool]

Probably your spider injector. But i would see what you can read on a scanner first.

 

[House003]

Probably your spider injector. But i would see what you can read on a scanner first.

Is there any way to check the spider injector?

 

[House003]

And if it was a spider injector or fuel pressure regulator, wouldn't it backfire through the carb?

 

[dowsewashere]

Hows your timing? Your distributor? Its cold now so it could be messing with it.

 

[badazzbulldog]

open the the throttle body to the wide open position and look in with a light if its wet inside its the spider also behind the tb is a twist in vacuum port that has the hose to the brake booster gently twist that out and look in there for wetness

 

[House003]

Hows your timing? Your distributor? Its cold now so it could be messing with it.

The distributor was replaced about 6 months ago

 

[House003]

If anything was leaking in the throttle body though, wouldn't it be backfiring out of the carb?

 

[House003]

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this is what it looks like down there right after running it for about 2 minutes

 

[House003]

It also only backfires when it's put into reverse or drive