Symptoms of stuck injector

[TYTILIDIE]

Heres what I am thinking. When I start my truck, for the first 2 minutes it runs like total ass. DM shows horribly high 02's. If I hold it at 2-3000 RPM for a bit it will all clear and drive just fine. This would indicate to me that one INJ is possibly stuck open. Now, I tried the stock chip and FPR and 2bar MAP and it still does the same thing. Moving right along, my MPG has always sucked but sucks even more now. The only thing that puts this thoguth away is that I dont get enough fuel on the top end. This however could be due to my fuel system problems that are currently in the process of being fixed. So from what Ive described so far, is it possible one could be stuck open?

 

[KETCH-UP]

Re: Symptoms of stuck injector

Automotive stethoscope on each injector, the sticking one will sound different. The good ones will have a crisp click sound. The stuck ones have a dull thump. Kinda hard to describe a sound. Try not to smack the tip around with them on your ears... that sucks!

 

[dgoodhue]

Re: Symptoms of stuck injector

A stuck injector will usually leak down (fuel pressure drops pretty quickly) with the engine off.

 

[bezerk]

Re: Symptoms of stuck injector

with one stuck injector you should have a really fauled plugs in one of your cilinders.

 

[Robert Lone]

Re: Symptoms of stuck injector

with one stuck injector you should have a really fauled plugs in one of your cilinders.

How many plugs are you running per cylinder Rene?

 

[It's just a six]

Re: Symptoms of stuck injector

Could also be partially plug injectors causing reduced flow & a bad spray pattern.

 

[bezerk]

Re: Symptoms of stuck injector

How many plugs are you running per cylinder Rene?

running 2 per cilinder, that's why it's so fast, i haven't told anybody yet