Turbocharger Boost Sensor A Circuit Malfunction
The POWERSTROKE-P0235-73 (Power Stroke) diesel fault code means: Turbocharger Boost Sensor A Circuit Malfunction. This is a serious severity code.
- Keep driving?
- Yes, but fix soon
- DIY difficulty
- beginner
- Estimated cost
- $60-$200
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Common Symptoms
- Low power
- CEL
- Limp mode on highway
Probable Causes (Ranked by Likelihood)
- Failed MAP sensor Very Likely
- Open circuit to MAP sensor Likely
- Corroded connector Possible
Step-by-Step Diagnostic Procedure
Check 5V reference at MAP connector (should be 4.9-5.1V key-on).
Ground-check the sensor return wire.
Replace MAP with Motorcraft unit if supply voltage is good.
Frequently Asked Questions
What is P0235 on a 7.3L Power Stroke?
P0235 on a 7.3L Power Stroke (1994-2003) indicates: Turbocharger Boost Sensor A Circuit Malfunction. This is a known diagnostic trouble code on this engine family and typically points to the causes listed above.
Can I drive with P0235 on my Power Stroke?
Yes, you can generally drive with this code, but diagnose it soon to prevent further damage.
How much does it cost to fix P0235?
Repair cost is typically $60-$200 depending on the underlying cause and whether you DIY or use a shop. Diagnostic time alone runs $100-$180 at most independent diesel shops.