Nothing but heartache after makeover

I need help. Just did a VCG change. Decided to do house cleaning while I was at it. Did an injector cleaning that seemed to go well. I just cut the finger from a rubber glove and wrapped it around the carb cleaner straw, stuck it into the injector while it was connected to a 12v battery charger and sprayed away. Changed the injector o-rings too. Cleaned the throttle body, intake manifold and MAF sensor. Changed the plugs and wires. Closed it all up today after the VCG redo and now the truck won't start. Looked over my work and I hooked everything back up. It fires up but only for a second or so and then just dies. I thought maybe it needed to get fuel back into fuel rail so I tried starting it a bunch of times but no change. It smells of gas like it is flooding. I don't see any fuel leaking from injectors or rails. Any help would be greatly appreciated.

 

Might double check if your sensors are reconnected properly. Sounds like the ecu isn't reading properly and is shutting it down. My first thought based on your description was your MAF

 

I wonder did you over voltage the injectors??

 

Second this. If you leave some solenoids to 12v for too long, it can damage the soilenoid

Or did you make sure you hooked up your spark plug wires to the right coils?

 

After further research I just may have. I kept it hooked up to a car battery charger on trickle charge setting but i think that may have fried them even though it was for 30 seconds or so. I'm cleaning the IAC tomorrow as "juice" from the throttle body cleaning may have flowed into it. If that doesn't work then it's off to the junkyard for new used injectors. It really sucks trying to improve the truck and wind up screwing it up.

 

Is this issue causing the MIL to trip and what code are you getting??

 

Plugs are right.

 

sometimes failure is the best way to learn. It sucks at the time but at the end of the day you learned new stuff.

 

Not sure what MIL is. But truck won't start so I don't know if there is a CEL on. Also don't have a tester and can't drive it to Autozone for a scan.

 

MIL is an acronym for malfunction indicator lamp. Just another term for check engine light

 

So if I fried the injectors would that mean they are always open and therefore the "flooding" symptoms or would that mean they are always closed and I would get no turnover at all?

 

If they're completely fried id say they wouldn't fire at all. Unless im mistaken, the solenoid opens the injector and a return spring closes it. So I'm not sure its your problem....

 

That's good news if correct. It does make sense though because you energize the injector to allow it to spray. So if fried then it wouldn't energize and thus no spray and thus no fuel and thus no turnover at all. Man I hope your right. I'll clean the IAC tomorrow and let you know.

 

Say hello to the bad guy. I have to start by apologizing to you all. Pulled the throttle body off this morning and in fact noticed that the rear coil connector was NOT fully seated. Snapped it in place and she started right up. So what have I learned. Well I wasted your collective time for one and am truly sorry for that. Second, check, check and recheck your stuff. Don't be so arrogant thinking you covered all your bases. But I did look over everything a couple of times. My guess is that it wasn't fully seated and then on installing the throttle body and hoses to the TB that run adjacent to that coil wound up bringing it up high enough to throw a wrench into the works. Well thank you all for your help. This forum is worth it's weight in gold and you all are golden as well. I look forward to many more years of caring and sharing on our collective Taco journey.

 

Nice

 

OP,
After all this, did what you did to clean the injection system make any difference? Inquiring minds want to know!

 

You're not a bad guy, you made a mistake. I wrench for a living. We do this stuff all the time. I watched a veteran of 20+ years install a high pressure oil pump with the plug from the factory (to keep debris out and lube in) still in it. He had to tear back in to pull that plug out - it's a 3-5 hour job if you hustle. Long story short - shit happens, just glad you got her fixed and it didn't cost you an arm and a leg

 

This was a quick find things happen might have been much worse .

Just goes to show if your going to work on these trucks more then putting in gas and changing oil invest in a simple code reader .

It would have pointed you in the right direction.

I keep one in each OBII vehicle

 

Just for future refrence.

I had a diesel truck that after replacing the injection pump (take a guess at what motor..) the truck wouldn't start until I bled all the air in the injector lines. Like ALL the air, took forever. So when I first read the original post this is what I thought.

So I guess my question is:
Are these injection systems as sensitive?

Or can they flush the air themselves pretty well?

 

Nothing at all like Fuel Injection on a diesel engine

To compare it I would say our EFI system would be self bleeding as the fuel flows through the fuel rail in a loop

With a Injector pump you have the lines going to each cylinder after the pump

keeping this real simple