P0230 on Honda: How to Diagnose & Fix
Fuel Pump Primary Circuit Malfunction
11 Honda models · 12 documented issues · 10 critical · $30-$1,200 repair
P0230 on Honda by model: symptoms, diagnosis and fix
The 10th generation Accord (2018-2021) is affected by the largest Honda fuel pump recall in history, covering over 5.7 million vehicles. Denso fuel pump impellers were manufactured with improperly molded low-density material. The impellers deform over time under fuel exposure, expanding and interfering with the pump housing, causing the pump to slow or stop entirely. Symptoms appear gradually as difficulty starting, rough idle, and stalling, progressing to complete no-start. Engine stall at highway speeds presents a serious crash risk. Honda expanded the recall multiple times (20V-374, 20V-714, 23V-111) as the scope widened.
Common Symptoms
- Engine warning light illuminated
- Difficulty starting - extended cranking before start
- Rough idle on first start of the day
- Engine stuttering or hesitation during acceleration
- Engine stalls while driving at any speed
- Engine cranks for 3-5 seconds before starting
- P0087 code (Fuel Rail/System Pressure Too Low)
How to Fix
Check recall status immediately at owners.honda.com or call Honda at 1-888-234-2138. NHTSA recall 20V-374 (expanded by 20V-714 and 23V-111) provides FREE fuel pump module replacement at any Honda dealer. Parts availability was delayed through 2021-2023; call dealer to confirm parts in stock before scheduling. Until recall repair: keep fuel tank above 1/4 full, avoid repeated hard starts. If engine stalls on road: pull over safely and call Honda roadside assistance (covered during active recall).
Find a Honda dealer
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Open Honda dealer map in Google Maps ↗Call to confirm they service Honda vehicles and check your VIN, recall eligibility, parts availability, and appointment options.
Sources for this issue (1)
The PGM-FI main relay powers the fuel pump and ECU. On these cars the relay's internal printed-circuit-board solder joints develop hairline cracks with age and heat. When the engine bay or cabin gets hot, the board expands and the cracked joints open, cutting power to the fuel pump — the car cranks but won't start (or stalls and won't restart) on a hot day, then fires right up after cooling a few minutes. This is one of the most iconic, well-documented Honda no-start faults of the 1980s-90s Accord/Civic/Prelude family.
Common Symptoms
- Cranks but no-start on hot days
- Fuel pump does not prime (no buzz) at key-on
- Starts fine after cooling for a few minutes
- Intermittent stalling in hot weather
- No-start after sitting in the sun
How to Fix
Confirm no fuel-pump prime (no 2-second buzz) at key-on when hot. The permanent fix most owners use is to re-solder the main relay's board (reflow every joint, especially the fuel-pump and ECU power circuits), or simply replace the relay with a new OEM/Denso unit. The relay lives under the driver's-side dash near the kick panel/steering column.
What you need to fix it
Only diagnosis- and fitment-reviewed repair parts are linked here.
- Honda 39400-SM4-003 Mitsuba main relayOEMHonda 39400-SM4-003
Replace a confirmed heat-sensitive PGM-FI main relay on the fourth-generation branch Fitment/availability: 1990-1993 Accord DX/LX/EX/SE and listed hatchback configurations, automatic or manual. Not interchangeable with the later SV4/S84 …
- Honda 39400-SV4-003 main relayOEMHonda 39400-SV4-003
Replace a confirmed heat-sensitive PGM-FI main relay on the fifth-generation branch Fitment/availability: 1994-1997 Accord in the seller's listed L4/V6, body, emission and transmission configurations.
- Honda 39400-S84-003 main relayOEMHonda 39400-S84-003
Replace a confirmed heat-sensitive PGM-FI main relay on the sixth-generation branch Fitment/availability: 1998-1999 Accord L4 or V6 within this issue; the catalog also covers 2000-2002. Confirm connector and relay output before purchase.
As an Amazon Associate, we earn from qualifying purchases; other part links may also earn au7o a commission. Confirm fitment by VIN before buying.
Sources for this issue (1)
The 5th generation CR-V (2018-2022) is included in Honda's largest fuel pump recall affecting over 5.7 million vehicles. Denso-manufactured fuel pump impellers were made with improperly molded low-density material that swells and deforms under fuel exposure, interfering with the pump housing and causing the pump to slow or fail. Engine stalling at highway speeds has caused collisions. This is the same recall affecting the 2018-2022 Accord, Passport, Pilot, and other Honda models. Honda expanded the recall multiple times as the scope widened to cover additional production dates.
Common Symptoms
- Difficulty starting - engine cranks longer than normal before starting
- Rough idle on first start of day
- Engine hesitation or stumbling under acceleration
- Engine stalling while driving at any speed
- Check engine light with P0087 (fuel pressure too low)
- Engine cranks but does not start (complete pump failure)
How to Fix
Check recall status IMMEDIATELY at owners.honda.com with VIN or call Honda at 1-888-234-2138. Recall 20V-374 (original), 20V-714 (first expansion), 23V-111 (final expansion) provides FREE fuel pump module replacement at any Honda dealer. Parts availability was severely limited 2021-2024 - call dealer to confirm parts in stock. Until repair: keep fuel tank above 1/4 full and avoid repeated hard starts. Honda provides rental car/loaner reimbursement during parts wait period.
Owner tips & cautions
- WarningSAFETY RECALL - check VIN at owners.honda.com immediately. This recall is FREE regardless of mileage/warranty. Engine stall at highway speed is a crash risk that has already caused accidents
- TipCR-V Owners Club: Call dealer to confirm fuel pump parts are physically IN STOCK before scheduling - many owners waited 3-9 months for parts; Honda will reimburse rental car costs during extended waits
- TipIf your CR-V was NOT in the original recall, check again - Honda expanded this recall 3 times. All 2018-2022 CR-Vs built before certain production dates are now included
Sources for this issue (2)
Defective fuel pumps manufactured by Denso with improperly molded low-density impellers. Over time, impeller deforms and interferes with fuel pump body, rendering pump completely inoperative. Fuel pump can suddenly fail while driving, causing engine to stall without warning and preventing restart, significantly increasing crash risk.
Common Symptoms
- Engine stalls suddenly while driving
- Engine cranks but won't start
- Intermittent starting problems
- Loss of power while driving
- Engine sputters then dies
- No fuel pressure
How to Fix
Honda issued multiple recalls (NHTSA 20V-374, 23V-111, 21V-215, 20V-314) expanding affected vehicle population. Dealers replace fuel pump module with improved part free of charge. Parts availability limited - Honda notifying owners in stages as parts become available. Contact Honda Customer Service 888-234-2138.
Owner tips & cautions
- WarningThis is serious safety recall - check your VIN immediately at owners.honda.com
- TipIf experiencing symptoms, don't wait for recall notice - call Honda at 888-234-2138 for priority service
- TipHonda may provide loaner vehicle or rental reimbursement while waiting for parts
- WarningDon't ignore intermittent starting issues - complete failure can happen without warning on highway
Sources for this issue (2)
Honda recalled 2,539,902 vehicles including 2017-2020 Pilot for fuel pump impeller defects. Improperly molded low-density impellers deform over time and interfere with fuel pump body, rendering pump inoperative. Causes difficulty starting, engine stalling while driving, or complete no-start. NHTSA campaign 23V-858. Parts availability issues delayed repairs until Fall 2024.
Common Symptoms
- Engine warning light in instrument panel
- Difficulty starting engine
- Engine stalling while driving
- Sudden loss of power/acceleration
- Engine cranks but won't start
- P0087 code (Fuel Rail/System Pressure Too Low)
How to Fix
Check Honda recall website with VIN to confirm if affected. Contact Honda dealer to schedule free fuel pump module replacement (NHTSA 23V-858). Call Honda customer service 888-234-2138. Confirm parts in stock before scheduling. Keep fuel tank above 1/2 full as workaround until repair completed.
Owner tips & cautions
- TipCheck recall status at Honda website with VIN before scheduling dealer appointment
- TipKeep fuel tank above 1/2 full to reduce risk of stalling while waiting for recall repair
- WarningParts availability severely delayed - confirm parts in stock before scheduling to avoid wasted trips
- WarningIf engine stalls while driving, safely pull over immediately and call for tow - do not restart repeatedly
Sources for this issue (1)
NHTSA recall 23V-858 affects 2.5+ million Honda and Acura vehicles including 2017-2020 Ridgelines. The Denso-branded fuel pump impeller was improperly molded with low-density material that deforms over time and interferes with the fuel pump body. Pump becomes inoperative, causing difficulty starting, engine stalling while driving (safety hazard), or complete no-start. This is an expansion of earlier recalls 20V-314 and 21V-215. Remedy parts were delayed causing extended wait times until Fall 2024.
Common Symptoms
- Engine warning light illuminated
- Difficulty starting engine
- Engine stalling while driving (safety hazard)
- Sudden loss of power or acceleration
- Engine cranks but won't start
- P0087 code (Fuel Rail/System Pressure Too Low)
How to Fix
Check Honda recall website with VIN at owners.honda.com. Contact Honda customer service: 1-888-234-2138. Schedule dealer appointment for FREE fuel pump module replacement. Confirm parts are in stock before scheduling (critical - parts were severely delayed). Keep fuel tank above 1/2 full as workaround until repair. Out-of-pocket replacement: $600-$1,200. Under recall: FREE.
Find a Honda dealer
Choose to share your location for this search, or enter an area below. Your search location is sent to Google to find dealers.
Open Honda dealer map in Google Maps ↗Call to confirm they service Honda vehicles and check your VIN, recall eligibility, parts availability, and appointment options.
Owner tips & cautions
- WarningCheck recall status with VIN immediately - this is a critical safety issue that can cause stalling while driving
- TipKeep fuel tank above 1/2 full while waiting for recall repair - reduces stalling risk by maintaining fuel pressure
- TipParts availability was severely delayed through Fall 2024 - call dealership to confirm parts in stock before scheduling appointment
- WarningIf engine stalls while driving, safely pull over immediately and call for tow truck - do not make unnecessary trips
- TipOwners who paid out-of-pocket may be eligible for reimbursement per recall plan - keep all receipts
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 Honda?
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 Honda it is documented across 11 models: Accord, CR-V, Odyssey, Pilot, Ridgeline, Fit, Prelude, Civic, Insight, Passport, HR-V.
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 Honda?
Published repair estimates on Honda range from $30 to $1,200 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.
Looking for P0230 on a different make?
View P0230 across all makes →Content compiled with AI assistance using NHTSA complaints, TSBs, and owner reports. May contain errors. Always verify with your vehicle's service manual.