Manifold codes come back almost immediately?

Tiny
BHAMDOC1973
  • MEMBER
  • 2015 CHEVROLET CRUZE
  • 1.4L
  • 4 CYL
  • 2WD
  • AUTOMATIC
  • 137,000 MILES
Am almost sure this is common, but I never fixed one before. Sometimes a bit of a rough idle when first started then fine. Delete codes and they come back almost immediately after I restart. Codes attaches.
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Saturday, March 29th, 2025 AT 4:41 PM

11 Replies

Tiny
BHAMDOC1973
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Any ideas?
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Sunday, March 30th, 2025 AT 1:14 PM
Tiny
KEN L
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Is this a turbo engine?
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Monday, March 31st, 2025 AT 12:49 PM
Tiny
BHAMDOC1973
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Yes.
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Monday, March 31st, 2025 AT 1:11 PM
Tiny
BHAMDOC1973
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Are you able to help?
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Tuesday, April 1st, 2025 AT 8:09 AM
Tiny
KEN L
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The system to lean and the oxygen sensor voltage low is telling us the MAF sensor is bad, I would replace it will a new one and then clear the codes. How does the engine sound while idling, can you upload a short video? Also, does the engine have an exhaust leak? Here is the location of the MAF sensor. Check out the images (below). Let us know how it goes.
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Tuesday, April 1st, 2025 AT 9:40 AM
Tiny
BHAMDOC1973
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Changed it and it seemed better. But then after I drove it a few miles there is still a hesitation, and rough idle RPM goes up and down slightly. No check engine light but I scanned it and the o2 sensor code still there. Disconnecting the mad sensor makes it better but the fan stays on high.
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Monday, April 7th, 2025 AT 8:13 AM
Tiny
BHAMDOC1973
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Is it possible a valve cover gasket leaking can cause such issue?
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Monday, April 7th, 2025 AT 9:13 AM
Tiny
KEN L
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I don't think so, with the engine running remove the oil fill cap to see if there are pulses. This can tell us one of the pistons is broken.
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Monday, April 7th, 2025 AT 11:21 AM
Tiny
BHAMDOC1973
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No pulses. Engine is smooth otherwise, no major engine issues or noises, drives smooth after.
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Monday, April 7th, 2025 AT 1:11 PM
Tiny
KEN L
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Did you change out the MAF sensor? Also, what are the Short trim readings?
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Tuesday, April 8th, 2025 AT 8:25 AM
Tiny
BHAMDOC1973
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Ya changed it.
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Tuesday, April 8th, 2025 AT 8:26 AM

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