No "Pre-Squirt"

[lil-bronc]

Okay, I installed the EZ-EFI on my 5.0 HO motor. Got everything installed and went through the start-up.

Everything was going good and looked good. It started and ran okay.

Then I parked it for a couple of days and got in it to start it and it wouldn't start. I had no "Pre-Squirt" and if i tried to give it some gas it wouldn't start. I had to spray some starting fluid in the intake to get it started and then it ran fine.

I have 12Vs at the battery and and the ignition wire. All of the sensors are reading values on the display.

Please HELP..

[lil-bronc]

The relay is energizing and the main fuse is good.

Tried to reset tune and makes no difference.

[lil-bronc]

Main wires going to battery, 12+ and Negative. Pink ignition wire is wired to disconnect and has 12V.

12V on both sides of the injectors.
O2 sensor is heating up.
Fuel pump is energized with initial key on and trying to start vehicle.
Has spark and good spark.
Plenty of fuel at rails. 43 psi.
Ground from battery to ground is 1.5 and ground to motor is 1.6 at intake manifold.

Did run for a couple weeks. Now no pre-squirt and it will not start.

Charged the battery till full and no difference. Has 11V when cranking the motor and the display shows the following:
A/F 15.9
ATS 80
CTS 76
TPS 00
MAP 99
RPM 0 (100 when cranking / trying to start)

Light on ECU stays blue when trying to start.

Need this running for this upcoming weekend. Please HELP!!

[SoCal]

Will it still start with some starting fluid? That suggests something is up with cranking.

Is the pink 12V switched wire definitely hot during cranking? Seems to be a common issue with Fords.

The engine should still start even with no pre-squirt. Unless there is no fuel at all during cranking. In which case pre-squirt becomes a band aid. It can sometimes be enough fuel to run the engine until you get off the starter and 12v switched comes back on. As a test, try moving the throttle a little just after key-on while the pump is priming. That should buzz the injectors and get some fuel in the manifold. If that gets it to start, I would look hard at the 12v switched wire.

You said it has spark. Is that based on the fact that it can run if helped with starting fluid or did you check for spark during cranking?

[lil-bronc]

I tried opening the throttle, no more than 20%, per the handheld. And still will not start. I tried using starting fluid but I am not sure how efficient I was because I was by myself.

The pink wire has 12V at all times when key is "On".

I have spark based on me taking spark plugs out and with it connected watching the spark plug spark.

It is almost like I am not getting any fuel.

I have the stock 5.0 fuel injectors and from research they meet the fast fuel requirements.

[SoCal]

I tried opening the throttle, no more than 20%, per the handheld. And still will not start.

We may not be on the same page. I meant step on the gas pedal a couple times at key-on to get the injectors to squirt some fuel before you try cranking.

I tried using starting fluid but I am not sure how efficient I was because I was by myself.

I don't follow. Will it start when using starting fluid?

The pink wire has 12V at all times when key is "On".

"on" and "start" aren't necessarily the same thing. You're saying it has power while cranking, too? Don't mean to beat a dead horse but this issue gets people quite often. If you put a voltmeter on the 12v switched wire and watch it while you crank, that will put this question to bed.

It is almost like I am not getting any fuel.

Can you put a noid light on one of the injector connectors while cranking?

[lil-bronc]

Yes, I have tried to pump the throttle with Key on and starting. I have tried with no throttle and partial throttle.

Will try to use starting fluid in an hour.

12V with key on and while cranking, verified with Fluke voltmeter.

Will go get a noid light during and test.

[lil-bronc]

Alright. I have sent the computer back.

I was on the phone with Tech Support and it appears there is no initial signal at key on or while trying to crank over.

Used a noir light, very cool tool. It showed that the injector didn't activate. I was able to get it started by spraying a lot of starter fluid in to the intake. Once it did get started the noid light lit. Then I got an injector duty error, cleared that and ran fine.

I let it get to temperature and it idled good and all readings were good. Stopped engine and waited about five minutes and restart it. No start again.

Will keep posted. Thanks Tech Support.