99 7.3 No start

[jdharris]

I looked at a lot of websites that say you only need 200

 

[Arisley]

OK Go with 200RPM's and no start.

 

[lincolnlocker]

I looked at a lot of websites that say you only need 200

LISTEN TO ARISLEY!!!

 

[jdharris]

Would low rpms cause the ICP pressure to be so hi while cranking? And if I'm getting smoke the injectors have to be working wouldn't they? The truck ran until it was rolled so I am trying to think of what could have happened during the rollover. Thanks.

 

[lincolnlocker]

how many rpm's do you have now while cranking?

 

[jdharris]

200. Does everybody agree that it has to be 500? I personally saw a powerstroke the other day crank spinning the same rpm.

 

[Arisley]

Actually, I believe you are right on the 200RPM thing.

Have you checked the rollover fuel switch in the passenger side kick panel?

 

[Powersmokin32]

X2 on the the fuel switch on the passenger side. No smoke=no fuel.

 

[jdharris]

The pump is working. It has 55-60psi. If I crank it over it eventually starts smoking after 10 or 15 seconds.

 

[jdharris]

I did a buzz test but didnt really know what to listen for. Injector #4 was louder than the rest. It showed a new code (P0340) so I replaced the CPS. It acts like it wants to start but still no dice. The only code now is P0470 exhaust back pressure. It had a high pressure of 2300 on the ICP. I pulled the pass valve cover because of another code that I forgot the number of. ( I borrowed a OTC scanner) something about high side open something another. The connectors looked good. I ohmed the wires to the injectors and the 2 outside ones had 12 ohms and the rest had less than 5.

 

[jdharris]

Wow thanks for the help :cursing:

 

[jdharris]

I thought this forum was supposed to be people trying to help each other. I guess I need to find another to join.

 

[C'roy78stroker]

Would be nice to know your "high side something or other" code. especially if its a new one. if you erased the codes before and these keep re-occuring then thats where you need to start and try to find out the troubleshooting steps to really diagnose the new issues. other wise your likely to be frustrated for longer then you'll want to be and with a charger hooked up to the battery.

 

[jdharris]

It was p1293 high side open right bank. I swapped out the IDM and cleared the code but still does not start. Th eonly cylinder that buzzes different is #4 which is louder than the rest. I can't even get it to start with ether now. I have plenty of white smoke while cranking and 2300 psi oil.

 

[POWER-STRUCK]

200. Does everybody agree that it has to be 500? I personally saw a powerstroke the other day crank spinning the same rpm.

actually the parameter in the pcm only needs 125 rpm to fire the injectors and should start with 450 psi of icp but spec is 500psi. sounds as if you have worn out injectors, either plug in the block heater to warm the engine and retry, or pull the valve covers and pull the coils off the top of the injectors get a 0.0015" feeler gauge and see if it slides under the armature with no drag, if it is tight then your injectors are worn. usually you can determine this by the sound of the injectors on a buzz test (louder is better)

 

[jdharris]

I took two injectors apart last night and cleaned the tips out, reinstalled them and they buzzed louder. I am going to pull the rest and clean them and see if it starts then.

 

[POWER-STRUCK]

they will be louder if you drain the oil out of them. but if out of tolerance won't make a difference

 

[POWER-STRUCK]

did you come to any conclusions or measurements? just asking incase someone reads this thread with similar problems

 

[jdharris]

Didnt do any measuring. Just cleaned them and just got them back in. It started and ran a few seconds (like crap) and died. Started back up and did the same. Batteries are dead now I'll try again in the morning. That is the first time however it's started without ether.

 

[jdharris]

What's the cheapest I can get out if I have to buy injectors?