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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View pilot availability →What Are the Symptoms of POWERSTROKE-P0235-73?
- Low power
- CEL
- Limp mode on highway
What Causes POWERSTROKE-P0235-73? (Most Likely First)
- Failed MAP sensor Very Likely
- Open circuit to MAP sensor Likely
- Corroded connector Possible
Can I Still Drive with POWERSTROKE-P0235-73?
Yes, but fix soon. POWERSTROKE-P0235-73 is rated serious severity. It is not an immediate stop-driving fault, but it will not clear itself — book the repair rather than ignoring it.
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.
Mechanics Guide Step-by-step diagnosis
How Do You Diagnose POWERSTROKE-P0235-73?
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.
Which Vehicles Commonly Get POWERSTROKE-P0235-73?
- 1994.5-1997 Ford F-250/F-350 7.3L Power Stroke
- 1999-2003 Ford F-250/F-350 Super Duty 7.3L Power Stroke
- 1999-2003 Ford F-450/F-550 Super Duty 7.3L Power Stroke
- 1994.5-2003 Ford E-350/E-450 7.3L Power Stroke
- 2000-2003 Ford Excursion 7.3L Power Stroke
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