Finished the work and it runs, still rough may need to do more work on the injectors. Root cause was a stuck float in the fuel reservoir.
Activate while soaking? 12V and engine tune sounds like a recipe for disaster. I all ready had a bilge fire cleaning out the hydro locked fuel, scared the crap out of me. I had an extinguisher close so little damage, I feel like a fool. Lake tomorrow afternoon to run a ton of treated gas thought it. We will see how clean they come.
Well, good thought. But what I meant was ,soak then lift out of solution and test then soak again. Just make sure the test leads are connected to the injector and touch the other ends of leads to 12v battery away from engine tune . Flash point is much higher than gasoline. At any rate, after running engine for a while they may clear out fine .
Had the injectors flowed last week "cleaned and checked in spec" Could not get an answer from the guy on the as recieved condition. Took the boat to the lake this afternoon runs better, but still has an issue. I run wake less for about half mile, then when I get after it, the boat stumbles, likes to run at 3/4 or 7/8 not full throttle. After a lap or two around the lake it is better but not 100%. I think it is loading up on fuel in the wakeless, then takes a bit to blow it out. I checked for leaks around the throttle body, looked fine. After the wakeless gas is blown out i get about 4600 RPM.
What are your ideas?
I had 27 psi in the rail at the beginning of this mess. The regulator spring and diaphram looked good, no leaks spring was not rusty in good shape. I will take a look at the pintle tonight.
Remove clean and reinstall pintle. Then run. Come apart? as in overspeed? Cool :-) been a while since I gernaded an engine. Or are you saying do not put 12v to the IAC because it will come apart?
Pulled and cleaned the IAC, little soot, but looked fine and dandy. I also rechecked the fuel pressure, jumps straight to 30ish and still falls off in 3 to 5 seconds. I did it a couple of times and the injectors stayed dry. I have pulled apart the throttle body and the pressure regulator and spring looked good. I would assume that when I started and ran the pressure would hold steady as long as the HP fuel pump would run. Did the same to my Truck it holds ROCK steady at 40ish.
I was thinking about looking for codes but did not see the Data Link Connector. do I need to pull one of the connectors on the ECU?
What about the TPI I noticed that it does have a throttle cable but it is not HARD linked to the butterflies could that system need cleaning or lubrication.
I am open for suggestions.
Thanks for your time and patients