P0230 on Chevrolet: How to Diagnose & Fix
Fuel Pump Primary Circuit Malfunction
9 Chevrolet models · 9 documented issues · 3 critical · $250-$1,000 repair
P0230 on Chevrolet by model: symptoms, diagnosis and fix
The fuel pump module can fail, causing hard starting, stalling, or no-start conditions. GM issued a recall for certain vehicles due to fuel pump issues. GM bulletin 24-NA-139 attributes crank/no-start, stalling and loss of power with DTC P023F/P129F to an internal short in the fuel pump driver control module.
Common Symptoms
- Engine stalls while driving
- Long crank time
- No start condition
- Loss of power
- Check engine light
How to Fix
Check if vehicle is covered by GM recall. Replace fuel pump module; with DTC P023F/P129F, GM bulletin 24-NA-139 calls for replacing the fuel pump driver control module (covered 8 years/80,000 miles). Some owners install upgraded pump assembly. Monitor for fuel pressure issues with scan tool.
Sources for this issue (2)
The fuel pump module fails to consistently provide adequate fuel flow to the engine, causing potential stalling while driving. This creates a significant safety hazard as the engine can stall unexpectedly in traffic. GM issued recall N222372310 (NHTSA 23V-013), covering 23,323 2021-2022 Equinox and 2022 Terrain vehicles.
Common Symptoms
- Engine stalling while driving
- Hesitation during acceleration
- Hard starting or extended cranking
- Reduced engine power
- Check engine light
How to Fix
Fuel pump module replacement under recall N222372310. Contact dealer for recall service. Check VIN at my.gm.com/recalls for eligibility.
Call to confirm they can assess your vehicle and perform the stated work. Search results do not confirm qualification, eligibility or coverage.
Sources for this issue (1)
The electric fuel pump sits inside the tank. When it weakens or stops, the engine loses fuel pressure. You may notice long cranking before it starts, stumbling or loss of power under load, stalling while driving, or a crank-but-no-start. It often fails with no warning on high-mileage vans. Owners also report that the cause is not always the pump. On Express vans, a bad fuel pump relay, a blown fuse, a loose connection at the pump connector, or a poor ground can cut power to a pump that is still good. In one owner-reported 2007 Express case, the fuses and relay tested good and a new pump fixed the van. In another, a loose connection kept the pump from running, mostly after the van had sat warm. GM bulletin 24-NA-139 covers a related fault on 2021-2023 Express vans (2021-2022 in this record). An internal short in the fuel pump power control module (K111) can cause a crank/no-start, stalling and a lit check-engine light, with code P023F or P129F stored. On 2012-2016 Express Cutaway vans with GM's dedicated LPG (propane) 6.0L system, the fuel pump can stop working and cause a no-start or a stall without warning. GM addressed this with a voluntary emissions recall and a newer-design pump.
Common Symptoms
- Engine stalls while driving
- Long cranking before start
- Loss of power under load
- Whining noise from fuel tank area
- No start condition
- No pump hum for about 2 seconds when key is turned on
- Check-engine light with P023F or P129F (2021-2022)
How to Fix
Check first: (1) With the key on, listen for the pump to run for about two seconds. (2) If it does not run, check the fuel pump fuse and relay, then check for power and ground at the pump connector. Look for a loose or damaged terminal at the connector. If the connector has no power, the problem is in the wiring, fuse or relay, not the pump. (3) If the pump runs, put a fuel pressure gauge on the fuel rail. Low or zero pressure with the pump running needs further testing of the pump and fuel supply. (4) On 2021-2022 vans, have the codes read. If P023F or P129F is stored and other diagnosis finds no cause, GM bulletin 24-NA-139 calls for replacing the fuel pump power control module (K111), not the in-tank pump. GM lists 0.4 hr of labor for that job on Express. The bulletin says the part is covered for 8 years/80,000 miles in the U.S. (8 years/130,000 km in Canada). Fix: if testing confirms the pump has failed, replace the fuel pump module assembly. The tank must be dropped to reach it. Replace the fuel filter at the same time. On 2012-2016 Express Cutaway LPG vans, ask a GM dealer to check the VIN for the open voluntary emissions recall, which replaces the pump with a newer design (P/N 23373813).
Call to confirm they can assess your vehicle and perform the stated work. Search results do not confirm qualification, eligibility or coverage.
Sources for this issue (4)
- Chevy Express/GMC Savana Starting/Stalling Problems - Edmunds owner forumforum
- Bad Express Pump for Chevy - Vehicle Service Pros (GM bulletin: failed fuel pump can cause no-start or stall on 2012-2016 Express Cutaway 6.0L LPG)article
- GM Service Bulletin 24-NA-139: Crank No Start, Stalling, MIL Illuminated - DTC P023F or P129F Settsb
- 2carpros: 2007 Chevy Express not getting fuelforum
The in-tank fuel pump module on 4th gen Camaros — which combines the pump, the fuel-level sending unit, strainer and internal wiring — is a common wear item, and its sending unit is a chronic source of an inaccurate or erratic fuel gauge. Owners report the gauge reading empty with fuel in the tank, jumping around, or dropping suddenly. The gauge inaccuracy is aggravated by the wedge shape of the tank and by the aging sending-unit resistor card, while the pump itself eventually weakens (long crank, stalling, high-speed fuel starvation). Because these parts are 25+ years old, failure is treated as routine maintenance.
Common Symptoms
- Fuel gauge reads empty with fuel in tank, or jumps around
- Long cranking / hard hot-start
- Stalling or hesitation, fuel starvation at high RPM
- No-start with no fuel pressure
- Whining or silent fuel pump
How to Fix
Replace the complete fuel pump module assembly (pump plus sending unit, strainer and wiring) rather than just the pump, so a worn sending unit or clogged strainer doesn't force a second tank-drop. Verify the fuel-gauge fuse, tank ground and instrument-cluster before condemning the sender if the pump itself is healthy.
Sources for this issue (1)
The in-tank electric fuel pump fails frequently on C/K trucks, especially in hot weather. Low fuel levels accelerate pump failure as the fuel cools and lubricates the pump. The pump module sender unit also fails, causing inaccurate fuel gauge readings.
Common Symptoms
- Engine stalling
- Hard starting
- Loss of power at highway speeds
- Whining from fuel tank
- Inaccurate fuel gauge
How to Fix
Confirm low fuel pressure before replacing parts by testing pressure at the TBI or CPI rail and checking pump current draw, fuel pump relay operation, wiring at the tank connector, and frame ground integrity. If pressure is below spec or the pump is noisy/intermittent, replace the complete in-tank fuel pump module/sender assembly rather than the pump alone, install a new fuel strainer and external fuel filter, and inspect the tank for contamination or overheating damage to the harness connector. Because sender failure is common, replacing the full module usually restores both fuel delivery and gauge accuracy; typical parts cost is about $100-$300 for an aftermarket module or $250-$450 for higher-quality/OE-style parts, with total installed cost commonly $400-$900 depending on bed removal vs. tank drop labor.
Sources for this issue (2)
The in-tank electric fuel pump module is a routine wear-out item on the 1995-2005 Cavalier and typically announces itself with a loud whine or high-pitched buzz from under the rear seat before it quits. When it fails the engine cranks normally with no sign of firing. Intermittent hot-restart failures are a classic early stage: the worn pump makes pressure cold but cannot when the fuel is hot. The fuel pump relay is a secondary cause - burned relay contacts from overcurrent produce the same crank-no-start and are a $15 part worth checking first.
Common Symptoms
- Loud whine or buzz from the rear of the car
- Engine cranks but will not start
- Stalls when hot, restarts after cooling
- Sputtering or loss of power under load or uphill
- No fuel pressure at the rail test port
How to Fix
Diagnose properly before dropping the tank: with the key ON, listen for a 2-3 second pump prime; then check fuel pressure at the rail against spec and swap the fuel pump relay with an identical relay in the underhood box. If the pump is confirmed dead, replace the complete module (not a bare pump cartridge) and change the fuel filter at the same time - a clogged filter is a common reason pumps die early. Expect $250-$450 DIY on parts, $550-$850 at a shop for a quality pump assembly.
Sources for this issue (2)
P0230 code reference
General diagnostic-code context. The code alone does not confirm a cause for your vehicle; use the applicable issue card and its sources.
Frequently asked questions
What does P0230 mean on a Chevrolet?
P0230 stands for "Fuel Pump Primary Circuit Malfunction." P0230 means the engine computer detected a fault in the fuel pump primary circuit — the control side that switches the fuel pump (or its relay) on and off. The PCM energizes this circuit to run the electric fuel pump that delivers fuel to the engine; if it sees voltage that is too high, too low, or out of expected range, it sets this code. Because the pump may not run correctly, the engine can crank without starting, stall, lose power, or hesitate. This is a circuit/control fault rather than a direct measurement of fuel pressure. On Chevrolet it is documented across 9 models: Silverado 1500, Equinox, Express, Camaro, C/K 1500, Cavalier, Cobalt, Silverado, C/K 2500.
What are the most common causes of P0230?
The most common causes of P0230 are: Faulty fuel pump relay, Damaged wiring or connectors in the fuel pump control circuit, Corroded or loose ground/power connection, Failed fuel pump or fuel pump driver module, Blown fuse or fusible link, Open or short in the primary control wiring, Faulty PCM driver output (rare). The specific cause varies by vehicle.
How much does it cost to fix P0230 on a Chevrolet?
Published repair estimates on Chevrolet range from $250 to $1,000 depending on the model and root cause. If an issue mentions a recall or campaign, check your VIN with the manufacturer or NHTSA and confirm eligibility and coverage with a dealer.
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Content compiled with AI assistance using NHTSA complaints, TSBs, and owner reports. May contain errors. Always verify with your vehicle's service manual.