bought a SHO, help me make it run

One grounded could still read power but be berkeleying up the ground pulse for the rest. That is what mark is saying.

How? Is it batch fire or sequential? Even if it were batch fire the most one bad injector could screw up would be 3 injectors total, which means you'd still be able to find 3 working injector pulses. If it's sequential you'd still have 5 others and the engine would start right up. Ive seen v6s run with 4 spark plug wires pulled so even if he 'only' had 3 injectors working it would probably run with some throttle.

In reply to Vigo: it's sequential

In reply to Vigo: you seem to be forgetting that my statement has some basis, new injectors fixed the only similar case I could find. Hell, all 6 could be grounded out yet still display power to them. Even if this case is different, It never hurts to change them.

I remember once, checking for injector pulse with the DIS not plugged in, there was no pulse. So maybe the DIS is bad?

There should be a spec to ohm injectors to check for bad ones.

you seem to be forgetting that my statement has some basis, new injectors fixed the only similar case I could find

My favorite electronics teacher always warned me against using 'magical thinking'. If you cant explain how something would happen in electrical theory terms, it probably cant happen. Even when people 'fix' things, you rarely get the whole story. People coincidentally/accidentally fix things all the time and automatically attribute their 'success' to whatever the thing was that was their idea, even if what fixed the car was just a coincidental byproduct of whatever they did (sometimes just jostle a wire).

If this car is sequential, it has 6 separate injector drivers. There is verified 12v to all 6 injectors. If an injector was shorted to ground it would either pop a fuse, melt a wire, or just pull the circuit down to low/no voltage which would be measurable on all the injector connectors. If an injector was shorted to power it MIGHT burn up ONE injector driver, but that would still leave the other 5 working. Since he has power at all 6 (couldnt hurt to recheck) and said in his first friggin post that there was no injector pulse on the switched ground to ANY of them, which is backed up by all the other info posted so far, ITS NOT A PROBLEM WITH INJECTORS.

Sergio has probably gotten closer than anyone so far when he said there is probably a 5v reference circuit problem. That coincides with what i said about the ECM not seeing some info that it needs to start grounding those injectors. I havent seen any posts saying that any 5v circuits were checked so far, so im still waiting to see if the two of us are right.

Did you run a key off engine off (KOEO) test yet?

If you have, what were the results, and if you have not- I'd suggest running it. It can be run w/o a tester, using a wire to connect two of the data port points (which I cant' recall off the top of my head)

belteshazzar wrote: 116, 636, 551 engine coolant temp out of range, transmission oil temp out of range, & problem in intake manifold runner control. that last one makes sense, as the solenoid is missing. i have an extra at home, but hadn't figured it for the reason the engine doesn't run.

Here's his KOEO test.

In reply to Vigo:

I thought he checked the power side for the pulse......

sergio wrote:

belteshazzar wrote: 116, 636, 551 engine coolant temp out of range, transmission oil temp out of range, & problem in intake manifold runner control. that last one makes sense, as the solenoid is missing. i have an extra at home, but hadn't figured it for the reason the engine doesn't run.

Here's his KOEO test.

is there a more in-depth analysis i could derive from a better scan tool, rather than just reading codes?

The injectors are constant power & switched ground. The power for all of them is spliced off one circuit, but the ground for each of them is an individual wire going back into the ECM.

In reply to Vigo: Thank you, that makes sense. I must have missed that along the way.

belteshazzar wrote: is there a more in-depth analysis i could derive from a better scan tool, rather than just reading codes?

IDK about the dealer side, but I can tell you my actron handheld read the same codes as the car was flashing.....nothing different. Granted, I wouldn't be surprised if others could do more or less.

belteshazzar wrote:

sergio wrote:

belteshazzar wrote: 116, 636, 551 engine coolant temp out of range, transmission oil temp out of range, & problem in intake manifold runner control. that last one makes sense, as the solenoid is missing. i have an extra at home, but hadn't figured it for the reason the engine doesn't run.

Here's his KOEO test.

is there a more in-depth analysis i could derive from a better scan tool, rather than just reading codes?

Ford OBD I computers aren't very data friendly. GM gives pretty good data but not old Fords.

swapped out the ignition control module. now i have injector pulse. still no-start.

injectors didn't make a peep when i hotwired each one individually. i started soaking them with injector cleaner, and now a couple will click.

Harbor freight ultrasonic cleaner does magic to injectors if you care to buy one.

any excuse to buy a tool is a good excuse.

anybody else notice that HOT ROD magazine has the BEST harbor freight coupons ? i routinely see stuff in their ad for less than "inside track" pricing.

GRM needs more Harbor freight adds

http://m.youtube.com/#/watch?v=2y_YSkJmXhM&desktop_uri=%2Fwatch%3Fv%3D2y_YSkJmXhM DIY injector cleaning. Or make engine run on starting fluid while tapping each injector with a screwdriver and hammer .

after soaking the injectors, it starts and runs! smokey burnout pictures to come!

So it was the injectors afterall........

If you like your transmission, I wouldn't do burnouts with it.

In reply to yamaha: He changed the DIS module and the injectors started working but they were clogged up.

Im glad someone noticed that.

The injectors didnt go from getting no signal and not working, to still getting no signal, but now working BECAUSE MAGIC. There was no signal. THAT was not an injector problem.

In reply to Vigo:

I did notice that.....hell, if I'd had an extra dis I'd have sent it to him for nothing.

I am glad you got it figured out.

Win!

And now you get to flaunt the win...