Hesitation

Tiny
MEILI
  • MEMBER
  • 2007 HONDA CRX
  • TURBO
  • 150,000 MILES
Car had issues about hesistation on acceleration. More like cutting out every second then continues to accelerate all the way to higher rpm's.

In every gear, almost feels like a TCM issue.

Found that camshaft actuators we're broken, timing chain was noisy and had major play.

Felt like the vehicle was in limp mode.

Since the repair I have put in a throttle body, a used TCM, had the ECU and TCM all updated with newest software. Mass air flow sensor, pressure relief valve, vacuum tested the turbo and waste-gate. (All working within specs). No shaft play and waste- gate opening normally and really accelerating okay, just cutting out every second as a pause.

Codes are currently only in the system but no check engine light ever comes on:

P2504 Charging system to high
U0121 Abs modual lost communication
Wednesday, November 8th, 2017 AT 12:09 PM

1 Reply

Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 42,877 POSTS
Hello,

This sounds like a misfire and a plugged catalytic converter which will restrict exhaust flow causing the low power you are describing. Here is a guide to confirm the problem. Have you installed new spark plugs lately?

https://www.2carpros.com/articles/how-to-change-spark-plugs

and

https://www.2carpros.com/articles/how-to-test-a-catalytic-converter

Please let us know what you find.

Cheers, Ken
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Thursday, November 9th, 2017 AT 11:28 AM

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