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> Cutting out problem
TURBOWHT
post Apr 8 2007, 09:15 AM
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So my truck is still cutting out. If you guys done know its a 4g63 swapped dodge ram 50.

The truck was running good. never cut out. then one night. WOT the truck would creep alot and cut out. Fuel cut i assumed. Well the next day came and would cut out at 8psi. but would let me rev it from a stop just fine.

well started it up the next day and reved it up and now it cuts out from a stop. It shows im building 15psi just reving it up. Something is seriously not right. and i cant figure it out.

Here is what is done to the truck and what i have done.

The only aftermarket thing on the truck is a gm maft and greddy type s. and inline walbro fuel pump.

I put new plugs in it. bpr7es, thinking i fouled one and it cuts out high rpm. thats not the case.

I tightend down my intake manifold. for some reason the bolts backed out. So i thought that would fix it. nope. didnt still runs like crap. I checked the pipes and reseated them.but i havnt boost leak tested it since i dont have a tester.

Do you guys think its a boost leak? or something else? Could ecu cause it to cut out like this? because im pretty sure the caps were bad, it was smoking and smelled like ass one day. But i have no clue what the ecu does when it goes bad.

Anyhelp or something to check for would be great. thanks


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turbohcar
post Apr 8 2007, 12:35 PM
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ECU's don't do anything particularly in common when they go out. Diagnosis is a crap shoot. It's hard to say if that's really your problem or not. Chances are good thought that it is the problem being as it smells like a burnt piece of plastic and the board is probably already burnt to a crisp.

Swap it out first and see if that doesn't help.


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- TURBOWHT   Cutting out problem   Apr 8 2007, 09:15 AM
- - natedogg   Definitely replace ECU. If it already smells bad ...   Apr 8 2007, 09:21 AM
- - TURBOWHT   So your thinking its prolly the ecu? I mean im goi...   Apr 8 2007, 09:48 AM
- - turbohcar   ECU's don't do anything particularly in co...   Apr 8 2007, 12:35 PM
- - turbohcar   ECU's don't do anything particularly in co...   Apr 8 2007, 12:36 PM
- - TURBOWHT   changed ecus. freaking car ran worse. changed back...   Apr 8 2007, 08:24 PM
- - natedogg   Make sure the ECU that you swapped into it was goo...   Apr 8 2007, 10:02 PM
- - turbohcar   Don't just look for the bad caps though. Chec...   Apr 9 2007, 06:03 AM
- - TURBOWHT   Cant find a freaking cap that will work to make a ...   Apr 14 2007, 03:58 PM
- - natedogg   Where are you checking for boost leak test caps? ...   Apr 14 2007, 04:08 PM
- - TURBOWHT   Do you think a boost leak would make me build boos...   Apr 14 2007, 04:22 PM
- - TURBOWHT   stock turbo ecu. I swapped ecu's and it still ...   Apr 14 2007, 05:31 PM
- - natedogg   QUOTE (Spyonu2007 @ Apr 14 2007, 04:21 PM)The...   Apr 16 2007, 07:23 AM
- - natedogg   Here's my reasoning for thinking its a boost l...   Apr 16 2007, 07:30 AM
- - TURBOWHT   oil im running mobil 1 10w-30. and tranny fli...   Apr 16 2007, 10:48 AM
- - TURBOWHT   Did the whole boost leak test. used a trash bag li...   Apr 16 2007, 08:42 PM
- - natedogg   QUOTE (TURBOWHT @ Apr 16 2007, 08:42 PM)Did t...   Apr 17 2007, 07:53 AM
- - TURBOWHT   So i took the timing cover off. Its off like 1- 2 ...   Apr 20 2007, 06:45 PM
- - natedogg   Having your cam timing off can definitely cause pr...   Apr 21 2007, 08:41 AM


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