00'BlueSteel
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Patiently awaiting the epiciness this will be!
Turbo Tahoe?
- Thread starter ibfreeman88
- Start date
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iamdub
Full Access Member
Either your friend's code reader is a turd or you have a fault somewhere. Double check any wires you messed with or the areas you worked in to see if you pinched or pulled any. Check the ECM fuses. It should start and run regardless of the turbo and should run on a base map if the MAF was unplugged. Besides, boosted or NA, the MAF (and most other sensors) aren't telling the PCM much of anything if the engine isn't running.
bottomline2000
Full Access Member
Maf is not going to be a part of the intake anymore. I would imagine it's going to be speed density tuned. It should start and run in open loop. I would try unplugging the battery and see if it jolts the system. Also, make sure the coolant temp sensor is plugged up. That stupid thing can wreak havoc on the system. My truck barely started and backfired when I forgot to plug it back up.
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ibfreeman88
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The MAF is on the charge pipe coming off the throttle body on the underside of the pipe almost in line with the alternator.
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ibfreeman88
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Yeah I've tried disconnecting and reconnecting the battery a few times still no change with the CEL. My HP tuners is out for delivery today so I should be able to figure out what the light is for and work from there. When I finally got the little code reader to work it told me no DTC's so it didn't help.
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ibfreeman88
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I've been slowly but surely running back over what I've touched in the process. Just sucks because not much needed to be disconnected or removed since it was pretty much just exhaust. So O2 sensors, rerouting heater core hoses, changing plugs, and the MAF sensor really. I'm sure it's something simple just have to find it.
randeez
Full Access Member
Try to remove the charge pipe at the throttle body and see if it starts. ie as if there wasnt a turbo...may need some significant work in the tune to get it started
You said you change injectors too? That would definitely need to be changed
You said you change injectors too? That would definitely need to be changed
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ibfreeman88
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Got it all squared away she finally runs. I've got to fix an exhaust leak that I was partially expecting but that's a small agenda at this point. Did some more troubleshooting and realized it wasn't getting fuel pressure to the rails. So I dropped the tank back down and realized the rubber hose on the new pump had popped off on one side I'm guessing from the pressure fixed that re-installed the tank and viola.
Ben Hinz
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00'BlueSteel
Full Access Member
Time to bring the noise!!!!! Glad it was something simple and free to fix.
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ibfreeman88
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Tonyrodz
Resident Resident
Nice. How's it run?
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ibfreeman88
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Haven't really driven it. Noticed an oil leak after I fixed the exhaust leak earlier so I need to take care of that now. Also I need to decide whether I want to just run a T off my brake booster or buy a vaccum block for my line from my BOV. I hooked it to my intake manifold on a port and it just keep the BOV wide open from the moment you start it so that's not going to work.
Ben Hinz
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Stock cam? Exhaust stock too? Besides the turbo manifold of course.
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ibfreeman88
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Yep stock cam and currently injectors for start up and checking leak purposes. Exhaust is currently not connected it's just the downpipe and about a 3' section of pipe attached to that which puts it a little past the crossmember mid truck.
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ibfreeman88
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Nothing new as of now I'm supposed to start my remote tuning Friday or Saturday hopefully. I've still got a small oil leak that I'll hopefully be taking care of for good tomorrow by using thread sealer instead of teflon tape. By the end of this endeavor I'll know the ins and outs of a Tahoe lol. Takes me maybe 15-20 mins to drop and install a gas tank on the ground with a jack. And tomorrow will be my second time removing my intake manifold to access my oil T, which is in the location of the oil pressure switch which leaves no room for wrenching hence having to take the manifold off. Which took me maybe 35 mins total to remove and install the first time. I'm just ready to be able to drive it around and hopefully that will be Friday or Saturday.
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ibfreeman88
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ibfreeman88
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Ran into another dilemma while putting it back together. When swapping out injectors noticed that the LSA injectors are quite a bit shorter than my factory ones and with the factory rail setup they aren't going to work so I'm currently trying to decide which route I'm going to go.
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