Recent content by jeffro312

  1. jeffro312

    P0171 and P0303

    just my 2 cents but when i had a p0171 it was related to the sais pump. Not sur if 05 trailblazers have them. With mine the hose connection on the pump under driver seat broke off and also the valvle on engine side didnt work. my fix was to delete the sais send my ecu to get reprogrammed and...
  2. jeffro312

    NEED HELP Coolant Drip/Leak Driver's side

    Hey not trying to be dumb just my honest thought but you say it's on drivers side... the thermostat is located on drivers side like behind and under the alternator. It's a bitch to get the gasket to stay on and what not so that could be cause of your leak if it was improperly installed. Just...
  3. jeffro312

    Secondary Air injection Solenoid BYPASS

    Not sure about the method you are talking about. When I bypassed my sais I sent ecu to pcmofnc to program sais code out then removed solenoid and installed a block plate I got from dealer and removed sais pump
  4. jeffro312

    Fuel Pressure Regulator Vacuum Line

    Hey AutoZone sells various elbows and vacuum hose just find ones that fit correctly. That's what I did anyway. Did you try calling dealer?
  5. jeffro312

    Your take on these noises

    Hey not hundred percent what it is but to rule out a couple things. Depending how mechanically inclined you are if you can remove your serpentine belt off the truck then start the truck for a short brief time with engine warm see if noise is still there without belt. If the noise is gone...
  6. jeffro312

    NEED HELP Can p0171 be related to sais

    Kinda of a long video or what I thought would be useful torque gauges Can skim through at the end is when I starting spraying carb cleaner then inducing a vacuum leak by taking that plug off the intake manifold stalled when putting back on restarted to misfire Sorry bout music. Didn't think...
  7. jeffro312

    NEED HELP Can p0171 be related to sais

    Well I went to AutoZone got cheapest coil they had valucraft I know i know horrible idea. (I'm broke sorry) get it home go to plug harness in it wouldn't clip on returned it to AutoZone got next one up duralast I replaced 2 others in past with that one no known issues. Ac delco were 99$ and...
  8. jeffro312

    NEED HELP Can p0171 be related to sais

    Ok so bad news guys while using carb cleaner to find a vacuum leak I was spraying couldn't hear a change so I unplugged that cap off intake manifold and badically caused a vacuum leak so I can. See what carb cleaner does. I sprayed and it really didn't do anything I mean as soon as I...
  9. jeffro312

    NEED HELP Can p0171 be related to sais

    Yea I think I'd most likely pay a shop 2 hours labor to find issue before I bought that thing haha. Thanks for the info. If I win lottery I'll be sure to buy that So I'm thinking I missed a vacuum leak What are all things that vacuum could leak out of ? 1. Intake manifold 2. Fuel...
  10. jeffro312

    NEED HELP Can p0171 be related to sais

    One last question. At idle does everyone rpms fluctuate or are they steady close to one number Not sure what this means if anything but mine does this goes to 630 then surges kind of down to 592 then slowly goes back to 630 then 592 I'll posts video of sound (edit I lied cant hear it too noisy...
  11. jeffro312

    NEED HELP Can p0171 be related to sais

    First time I went for emissions was in lot waiting to get it done light came on. So I cleared it went home went to work came on again. Cleared it drove home and didn't come on emissions were showing complete so I went to the place shut car off. I had to go back there with guy because I...
  12. jeffro312

    NEED HELP Can p0171 be related to sais

    Hey thanks for video. Not sure if I stated before or if that's wrong video but my sais system has been deleted. As in completely removed air pump hoses and valve and a block off plate from dealer installed and pcmofnc deleted code from pcm. Truly wish it was that I'd have it fixed by now
  13. jeffro312

    NEED HELP Can p0171 be related to sais

    hey thanks for info you are correct about it going into open loop when rvved over 3k grr. going to check spark plugs this weekend ive replaced map back when first tried fixing this ill have gf rev engine listen for that whistling local shop charges 110 for fuel injection cleaning...
  14. jeffro312

    NEED HELP Can p0171 be related to sais

    Also quick question tried searching via Google on here for how to actually remove and clean injectors manually not by adding fuel additives? Or is that something easier done paying a shop to do? Not sure if special tools or what not is involved
  15. jeffro312

    NEED HELP Can p0171 be related to sais

    Hey mooseman thanks for that info I read that over plus a few similar articles. It says if it's a vacuum leak that ltft should return to normal at higher rpm and there I tested this theory and ltft. First I did it when I left work but engine was cold so nothing warmed up etc. At idle ltft...

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