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Tim Mohr
Tim Mohr, ASE MASTER TECH
Category: Chrysler
Satisfied Customers: 12869
Experience:  30 YRS EXPERIANCE, AUTO AND TRUCK,FOREIGN AND DOMESTIC, GAS AND DEISEL
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2004 Chrysler PT cruiser: 2.4L Turbo with an obd2 code of p1188..boost

Resolved Question:

I have a 2004 Chrysler PT Cruiser 2.4L Turbo with an OBD2 code of P1188 It seems to be something about the Turbo over boost. I am fairly handy around a car but i can't find any more info on where to start. What do you suggest?
Submitted: 4 years ago.
Category: Chrysler
Expert:  Tim Mohr replied 4 years ago.
Hi, my name is XXXXX XXXXX is usually caused by a bad wastegate, but you will have to run the diagnostic chart to determine this, I will post the chart below,Tim
Expert:  Tim Mohr replied 4 years ago.
Notes

Test 1 - 6

Test 6 - 9

Test 10


SYMPTOM
P1188 TIP SENSOR PERFORMANCE

TEST NOTE
This symptom is diagnosed using the test P0234-OVERBOOST PERFORMANCE.

WHEN MONITORED
During the engine turbocharger boost and non-boost modes.

SET CONDITION
Non-boost Mode: PCM detects a significant difference between TIP Sensor signal and BARO Pressure signal. Boost Mode: The TIP Sensor is unable to read correct boost level.

POSSIBLE CAUSES

  • Checking for other DTCs
  • Checking the hoses and tubing
  • Checking the vacuum supply to surge solenoid
  • Confirm all solenoid test
  • Good trip equal to zero
  • Solenoid #3 test
  • Solenoid test #1
  • Solenoid test #2
  • Solenoid test #4
  • Turbocharger
  • Wastegate actuator

 

Tim Mohr, ASE MASTER TECH
Category: Chrysler
Satisfied Customers: 12869
Experience: 30 YRS EXPERIANCE, AUTO AND TRUCK,FOREIGN AND DOMESTIC, GAS AND DEISEL
Tim Mohr and 7 other Chrysler Specialists are ready to help you
Customer: replied 4 years ago.
It sounds like i need more tools then i have. Should i take this to a shop?
Expert:  Tim Mohr replied 4 years ago.
You will need some specialty tools to diagnose this, if you dont have them, find a good indapendant shop to do this,Tim

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