you could disconnect the injector but I doubt it matters. just have someone fire it up and be ready with the spray, just use short bursts and see if it stays running. don't over use the stuff. you might get a back fire. should be pretty easy to tell if wants to keep running.
ok so after removing the injector connectors and having my daughter crank the engine I was able to keep engine running for about 20 or 30 seconds.
Didn't want to run much longer do to no water running in exhaust
that's good. sounds like you just need to start tuning. again, I know nothing about this ecm tbi tuning, so you might wanna find a thread about the logical order to start tuning it.
without knowing that, I'd probably find the coolent temp map, throw some more fuel at it there as a temp to get it up to operatiing temperature and start on the base Ve table
I think steveo works on boats mybe he will have a suggestion.
Ok as of now this is what I have found out.
Motor will run while spraying starting fluid.
during this running the injectors are pulsing
Installed a electronic fuel pressure gauge
During start up it is running 13.5 pounds
after the key is let go it is running right at 13 pounds
once engine dies it takes fuel pressure to die off about 20 secs
map sensor is registering correctly
tps and iac are new
ect is new 2.89 kilo ohms which is 2890 ohms its about 75 degrees outside
Distributor is new
Fuel pump is new
What have I missed
spark plugs wires and coils NEW
Last edited by chadapcb; 05-10-2016 at 07:05 PM. Reason: change ect
Ok she is alive and running.
BUT, and there is always a but.
I kept omitting the fuel pump.
The fuel pump is a SP1175 12-26#'s pressure with 50 to 58 gph
Even tho I was getting 13# pressure it wasn't enough
I completely blocked the return line to the tanks.
Brought the pressure up 24# pressure cant run like this as the pump is straining.
Where do I need to look.
I know it is the fuel side and only thing I have done is blocked return line.
So is it the regulator or is it the pump
should it running off a stock tune? like have you loaded up a known good bin for this setup?
cause if you're trying to run a boat motor off a stock truck chip. wouldn't it require tuning? clamping off the return line is the same thing a fmu does for a super charger car to get more fuel passed the injectors without tuning. it's a bandaid thou.
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