P3402 — Cylinder 1 Deactivation/Intake Valve Control Circuit Performance

Q: "Can I drive with this code?"

"It depends on the severity. If the vehicle runs normally, short trips are usually OK. If you notice performance issues, drivability problems, or warning lights beyond the check engine light, get it checked soon."

Q: "Will this code clear itself?"

"Some codes clear automatically after the underlying issue is fixed and several drive cycles pass. But the root cause must be addressed first."

Q: "How do I find the exact cause?"

"A code alone doesn't pinpoint the failed part. You need a diagnostic scan ($50-150 at most shops) that reads freeze frame data and live sensor readings to identify the specific component."

What Does P3402 Mean?

P3402 is a diagnostic trouble code indicating: Cylinder 1 Deactivation/Intake Valve Control Circuit Performance. This code relates to the powertrain system. It has been reported in NHTSA complaints across 1 different vehicle models.

Symptoms of P3402

⚠️ Check engine light illuminated
⚠️ Hesitation during acceleration

Common Causes

🔍 Clogged or leaking fuel injector

Real Owner Reports

From NHTSA complaint database — actual owner descriptions.

"I am the owner of a 2020 Ford escape. My vehicle falls under the recall dealing with defective fuel injectors. The dealership preformed the suggested service or installing the drain tube and updating the software. I’ve been noticing that my vehicle has a slight hesitation while accelerating in speed"
— Ford Escape owner, 07/18/2025

"On or about [XXX] I was driving on the highway and the traffic was slowed down. Once the traffic speed picked back up I noticed the maintenance symbol light up. I could not go any faster than 50 mph. I immediately went and got and oil change. Once I paid for the service the technician told me that I"
— Ford Escape owner, 01/20/2025

Source: NHTSA Complaints Database

Most Reported Vehicles for P3402

Based on NHTSA owner complaint data.

#	Vehicle	Reports
1	FORD ESCAPE

P3402 Reports by Vehicle

Detailed NHTSA complaint analysis for each vehicle model.

FORD ESCAPE

2 NHTSA reports · Peak: 2020, 2021

Frequently Asked Questions

Can I drive with this code?

It depends on the severity. If the vehicle runs normally, short trips are usually OK. If you notice performance issues, drivability problems, or warning lights beyond the check engine light, get it checked soon.

Will this code clear itself?

Some codes clear automatically after the underlying issue is fixed and several drive cycles pass. But the root cause must be addressed first.

How do I find the exact cause?

A code alone doesn't pinpoint the failed part. You need a diagnostic scan ($50-150 at most shops) that reads freeze frame data and live sensor readings to identify the specific component.

What To Do Next

Possible Fixes

🔧 Have the code scanned with a professional-grade scanner to read freeze frame data
🔧 If DIY repair isn't feasible, get a diagnostic from a trusted mechanic ($50-150)

1
Find your vehicle above
Click your make and model for real owner reports and common causes specific to your vehicle.
2
Check for recalls
Go to nhtsa.gov/recalls and enter your VIN. Free repairs if covered.
3
Get a professional diagnosis
A code alone doesn't identify the exact failed part. A diagnostic ($50–$150) pinpoints the root cause.

P3402: Cylinder 1 Deactivation/Intake Valve Control Circuit Performance