Truck just died :( - Diesel Truck Forum - TheDieselGarage.com
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post #1 of 5 (permalink) Old 06-10-2007, 08:55 PM Thread Starter
 
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Truck just died :(

So ive been having alittle problem with my 24 valve for about a week... at a low speed (30 to 50) it would not downshift but it would jump up and down about 500 rpm... at higher speeds it was fine or if i was on the gas hard... only at a slow take off would it do it... Then last night i got on it and at about 60 the truck just turned off... everything died... It turns over fine. So i was thinking for whatever reason maybe i just sucked the fuel out the lines or something and dried it up... cause it felt like i ran out of fuel... So i cracked acouple injector lines and ran some starting fluid... runs fine when the starting fluids being sprayed... and fuels coming out of the lines... but wont run off of it... So i called my buddy and we put it on the trailer and hauled it to autozone to run codes cause it got the check engine light... I poped 6 codes but i figured most were cause i have the Quadzilla comp installed. The codes were for... P1693-Turbo Charge Control circuit Malfunction...Tachometer circuit failed...MIL short to positive... MIL Request Circuit Malfunction... then... P0234... Overboost condition has occured... then... P0237... Input voltage for boost pressure sensor "A" is too low for the current engine operating conditions... finally...P0122... input from the throttle position sensor is lower than expected for the current engine op conditions... I think most everything is probly cause the Quadzilla except probly the TPS... since it may have been a problem in the first place... and was just week till last night when i killed it... does anyone have any ideas what it could be? or are yall thinking im leaning in the right direction??? I Priced the TPS while at autozone... $500!!! Thats a crap load for a sensor thats $50 in any other vehicle... I looked on ebay and they have some... but one is just the black part... the sensor its self... Can i just change that piece? cause at autozone its the whole bracket thing i think... thats what the pic showed anyways... plus on ebay theres the whole bracket piece setup for sale also... just alot more... anyone know if i would need the whole thing or not? Thanks for any help at all... i just got out of the marines Sat and go figure my cars brakes went out Sat evening and my truck died at about midnight... So now im vehicless... lol... oh yeah and a rundown on what else i have is exhaust, intake, BD aux lift pump, electric fan, and a boost lag elbow Thanks again for your time!!
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post #2 of 5 (permalink) Old 06-10-2007, 10:49 PM
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Check your MAP sensor connection. Could be the cause of some of those codes. Also it kinda sounds like your injection pump went out to me,

2000 CTD, HOT Juice w/Attitude, Smarty, Mach 2 injectors (105 HP), 4" exhaust, BHAF, SB Clutch, FASS 150 ARP 12mm studs, stage 3 snow kit.

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post #3 of 5 (permalink) Old 06-11-2007, 05:28 PM Thread Starter
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Yeah thats what i was thinking at first... but then there is fuel being pushed to the injectors... and it didnt pop a code for the injector pump... and from what ive read they pop codes... ill check the map sensor connection better... ive played with the plug alittle but didnt notice anything... guess ill pull it apart and look. Thanks for the info!!
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post #4 of 5 (permalink) Old 06-11-2007, 05:39 PM
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Check all your connections really well. Although it sounds like a classic VP dying to me. Just because there is fuel coming out does not mean it is being delivered with the proper pressure to pop the injectors. Also keep in mind a pump can die without throwing any codes, I have personally witnessed it. Have you checked your fuel pressure to see where it is?

I hope you find something else wrong, but I wouldn't look too far past the IP. Also be careful with that ether, that stuff is bad news if used improperly.
post #5 of 5 (permalink) Old 06-12-2007, 04:33 PM Thread Starter
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im checking the pressure today... i cant check but the Lift pump pressure cause the truck wont start... its new and i can hear it so im pretty sure its good anyways... but just incase... the injetor pump should pull fuel through it anyways if it was bad and the truck would at least run. yesterday i took the battery connection off for 30 minutes and hooked them back up... turned the key to on and the check engine was still there... took it and had the codes cleared and turned the key to on and the check engine still there again... this time though only two codes are showing... the P0237... Input voltage for boost pressure sensor "A" is too low for the current engine operating conditions and the P1693-Turbo Charge Control circuit Malfunction...Tachometer circuit failed...MIL short to positive... MIL Request Circuit Malfunction... So i dont freakin know... i got the guys at dieselspecialist.net trying to help but there not to sure either... gotta call them back after fuel pressure check. Im thinking after this im going to just have to take it to the shop... i like working on my own vehicles cause i learn alot but when it comes down to being many different parts... its just cheaper to take it somewhere then to choose which part to change next lol... anymore ideas?? please help... its my everyday driver!!! Thanks again for the inputs folks!!
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