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In this video I work on a 2006 Saturn Ion 2.4 with engine codes P0300, P0171, P0507, P1174. The customers complaint was rough running, poor performance, erratic idle and over all just "didn't run right". Come along as I check this car out and see what is wrong.
NOTICE: Car will be returning at a later date to be repaired so check back for the confirmed fix 🙂

50 thoughts on “Saturn ion 2.4 codes p0300, p0171, p0507, p1174”
  1. Avataaar/Circle Created with python_avatars Antonio Claudio Michael says:

    Nice find On the Vacuum leak With the lean Condition good Work Eric O @SouthMainAutoRepairLLC

  2. Avataaar/Circle Created with python_avatars Bob Lum says:

    How did the vacuum leak get fixed? Crack in plastic or something wasn't tight?

  3. Avataaar/Circle Created with python_avatars ELITE A says:

    I have Chevy tahoe 2002 misfire cylinders 6 random misfire passenger side driver side is good 😢

  4. Avataaar/Circle Created with python_avatars Harry L says:

    All I need now is a couple dozen cans of that super secret brakes clean!! 🤣
    That’ll stop it fo show! 😂
    Now on to the matinee!

  5. Avataaar/Circle Created with python_avatars WouterB76 says:

    there's your problem lady!

  6. Avataaar/Circle Created with python_avatars Tomas T says:

    Is the gasket hard to replace? My car doing the exact same thing

  7. Avataaar/Circle Created with python_avatars Cuba's Automotive says:

    Sticking to the basics… love it. Such a logical approach. So simple it's mind blowing sometimes. Lol. Buenísimo vid sir! 😊☺

  8. Avataaar/Circle Created with python_avatars Joshua Adam says:

    So hey I can hear a leak coming from the intake manifold of this 2.2 ecotec I'm working on. The only code over got is 303 but after putting a new ICM on I got a 300 and much more violent misfire. Put the old ICM back on and it's back to normal, misfiring only when up to temperature. I'll definitely do the brake cleaner test and go from there.

  9. Avataaar/Circle Created with python_avatars Thomas Benson says:

    Hey buddy I have a 06 Saturn ion same motor same exact everything but I have had the car tested at Advanced Auto which that place is horrible and excuse my language but they have shitty parts.. but anyway I also took it to AutoZone an the test came back to be the same thing 1 random misfire an 2 which leads to whenever I stop to put fuel in it and then I would crank up the car but won't run until I feather the gas pedal so I would start it again an fires right up but I have to hold it at 2rpms for 3 to 4 minutes after that it'll run ok but if I let right then it'll stall out but the car did keep on cutting off me sometimes while driving an stopping anywhere but I took some carb cleaner and took off the air intake an sprayed it so now it quit doing that for now just does it whenever I put any amount of fuel in it.

  10. Avataaar/Circle Created with python_avatars Aaron Pixler says:

    Hey Eric heres one. I dont have the scanner to view live data. Heres the issue. 2000 silverado 2500 hd with a 6.0. 265k on the clock. Very suddenly it starts idling very high. p0507 code thrown. i clean the throttle body properly, use a multimeter to check idle air, and remove and clean it. i check my tps and clean it. i cleaned my MAF sensor with the proper stuff. i check for intake leaks using a flammable spray, and the soapy water way. The engine idles very high on cold start(1500rpm) when its warm its 2000. it stays high when you drive it to. The only thing i havent checked is the PCV valve. i also havent taken off the intake manifold yet. i suspect oil may be in it. Also a side note. it starts throwing a No communication from MAF to o2 bank one. i uplug the MAF while its running. It stays running. I change the MAF. same deal.

  11. Avataaar/Circle Created with python_avatars MIKE CONT says:

    Great video

  12. Avataaar/Circle Created with python_avatars Duncan Mac says:

    Beer money……Thanks for the video.

  13. Avataaar/Circle Created with python_avatars Patrick Lions says:

    what kind of scan tool/software is that?

  14. Avataaar/Circle Created with python_avatars Rick Uyeda says:

    There was another site where the problem was a piece of plastic fell into the throttle body, keeping the throttle blade open. Taking the piece out so the throttle blade could close all the way cured the problem.

  15. Avataaar/Circle Created with python_avatars schwartzenheimer1 says:

    would have been interesting to see the repair on a Saturn

  16. Avataaar/Circle Created with python_avatars Ytfor says:

    How did you resolve the P1174 code, I got this on my Chevy uplander 2008

  17. Avataaar/Circle Created with python_avatars Wayne Ash says:

    whats a good nasic scan tool to have if your doing your own repairs

  18. Avataaar/Circle Created with python_avatars Wayne Ash says:

    whats a good nasic scan tool to have if your doing your own repairs

  19. Avataaar/Circle Created with python_avatars Wayne Ash says:

    whats a good nasic scan tool to have if your doing your own repairs

  20. Avataaar/Circle Created with python_avatars Wayne Ash says:

    whats a good nasic scan tool to have if your doing your own repairs

  21. Avataaar/Circle Created with python_avatars Moving Up Auto Diagnostics says:

    Thanks Eric, shalom.

  22. Avataaar/Circle Created with python_avatars Richard 1990 says:

    I always look on the scan tool to see if the lean condition is happening at idle. if so, then I look for vacuum leak.

  23. Avataaar/Circle Created with python_avatars StopDropandLOL says:

    So the customer decided to fire the parts cannon before bringing it to you? Awesome!

  24. Avataaar/Circle Created with python_avatars AK540i says:

    Is the brake cleaner method superior to the smoke test?

  25. Avataaar/Circle Created with python_avatars Patrick Lions says:

    what kind of scan tool are you using? I have 05 ion with intermittent p0171 and p0302.

  26. Avataaar/Circle Created with python_avatars Richard Cowtails says:

    I guessed right away vacuum leak and/or intake. That's been mysterious symptom lol the plenum INSIDE my intake lol

  27. Avataaar/Circle Created with python_avatars Richard Cowtails says:

    I've been looking a good scanners. I have a 99 dodge ram. also looking at buying a camry 2001ish. on scanners, Should I get one of the higher end innova scanners or buy that big scanner autel from harbor freight?

  28. Avataaar/Circle Created with python_avatars GRowe1978 says:

    Poor performance?  You are aware it's a Saturn, right?

  29. Avataaar/Circle Created with python_avatars JOGO says:

    Makes sense and thanks..

  30. Avataaar/Circle Created with python_avatars Mark Ferraro says:

    Nice job Eric thanks for sharing

  31. Avataaar/Circle Created with python_avatars gbowne1 says:

    @South Main Auto Repair Eric.. What do you think of them Zetec engines from the Ford Focus, Contour…

  32. Avataaar/Circle Created with python_avatars Phil H says:

    do you know how to update the verus? i dont have a snap on guy bought it from ebay works good just want to update

  33. Avataaar/Circle Created with python_avatars VGAPR Garage says:

    Horrible engine

  34. Avataaar/Circle Created with python_avatars S. M. says:

    What software are you using?

  35. Avataaar/Circle Created with python_avatars Anthony Filice says:

    Good diagnosis. I'm confused though how an intake leak would cause a lean code, I thought it would cause a rich code because metered air escaping but the determined amount of fuel is still entering the cylinder. Can someone explain this to me?

  36. Avataaar/Circle Created with python_avatars Richard Gill says:

    Nice job Eriic. I enjoy your videos as much as my guy Scanner Danner

  37. Avataaar/Circle Created with python_avatars Dan.vaku says:

    Were you purposely ignoring the low 8.8 in hg map sensor reading to pretend like you didn't know what was going on? Lol, that was actually the first thing I noticed that seemed off.

  38. Avataaar/Circle Created with python_avatars Pine Hollow Auto Diagnostics says:

    I'm a bit disappointed when your diagnostic vids are under 10 minutes long 🙁 jk awesome work man…sweet and to the point!

  39. Avataaar/Circle Created with python_avatars Octavio Lara says:

    what if you get code p0171 & p0174 and bank 1 oxygen sensor code..would that be the oxygen sensor causing both lean conditions ?

  40. Avataaar/Circle Created with python_avatars 12vgs8606 says:

    Wouldn't the video be lot shorter if only you click "Fix it!" button it displayed next to the Code Description ?   Every time you show that screen, I am yelling "Go Ahead Eric, Press That Button!"

  41. Avataaar/Circle Created with python_avatars j georges says:

    ERIC, nice one double thumbs up.

  42. Avataaar/Circle Created with python_avatars Brendan Cunningham says:

    a P0174 can be caused by an exhaust manifold leak right?

  43. Avataaar/Circle Created with python_avatars cryoburned says:

    Man, how would you like to be guy that bought new injectors and solenoids for a leaking intake?

  44. Avataaar/Circle Created with python_avatars Hendrik Derudder says:

    Great troubleshooting diagnosis!

  45. Avataaar/Circle Created with python_avatars Jim Rini says:

    Eric do you ever get anything hard? Lol

  46. Avataaar/Circle Created with python_avatars DJ HAYES says:

    I tell ya pid data is always key…u can find just about anything with pid data values.. most scanner now have that capabilities. . But most people have know clue what pid data is…keep up good work brother..c ya

  47. Avataaar/Circle Created with python_avatars Nick Nicu says:

    Those Saturn engines are good from my experience. I've recently done a compression test on one with 175K miles on it and it showed 185 PSI across the board. I thought