OBD-II Code
P1190
Severity
Not yet reviewed
Nobody on our side has assessed this code yet, so we are not going to guess at how serious it is.
Can you drive it
We cannot say
Treat it as unknown until a shop reads it with live data. If the check-engine light is FLASHING, stop driving as soon as it is safe to — that means an active misfire, whatever the code.
Indicative cost (USD)
$400–$1,600
From this code's diagnostic notes. Varies by vehicle, diagnosis, parts, and local labor. This is not a repair quote.
$400 (in-tank pump assembly DIY on Skyactiv) to $1,600 (HPFP + cam follower + labor on Mazdaspeed).
P1190 on Mazda is the engine-stall code triggered when fuel rail pressure falls below the minimum required to maintain combustion at idle — the ECU sees a stall event correlated with insufficient fuel pressure and sets P1190 to point at the fuel delivery system rather than at a misfire or ignition fault.
How a shop works this
Work from evidence to part, not the other way round. A code names a circuit or a symptom; it does not name the part that failed.
Note every code that is set, not just this one.
Codes that appear together usually narrow the cause faster than any one of them read alone.
Read the freeze frame — the conditions the fault was recorded under.
Cold or warm, idle or load, road speed and engine speed. A fault that only appears cold is a different fault from one that only appears under load, even with the same code on the scanner.
Confirm the fault is current rather than history.
Clear the code and see whether it returns under those same conditions. A code that does not come back may have been logged during a repair, a flat battery, or a bad connection that has since been disturbed.
Then follow the diagnostic notes further down this page, in the order they are written.
They are written in the order a shop works this code, cheapest checks first. Where they name a component, inspect its wiring and connector before replacing it.
If the code comes back after a repair, the underlying fault is still there. That is the point to bring in a scanner with live data and freeze-frame, or a shop that has one.
Common symptoms
- Check engine light
Read the full diagnostic procedureP1190 on Mazda is the engine-stall code triggered when fuel rail pressure falls below the minimum required to maintain combustion at idle — the ECU s…
P1190 on Mazda is the engine-stall code triggered when fuel rail pressure falls below the minimum required to maintain combustion at idle — the ECU sees a stall event correlated with insufficient fuel pressure and sets P1190 to point at the fuel delivery system rather than at a misfire or ignition fault. On Skyactiv-G direct-injection engines (2.0L and 2.5L), the high-pressure fuel rail normally runs 5,000-30,000 psi (commanded by the ECU based on load) and the low-pressure lift pump supplies 50-65 psi to the HPFP inlet; either side falling out of spec causes the stall. On older PFI Mazdas (pre-Skyactiv 2.0L MZR, 2.3L Duratec), rail pressure is a straightforward 30-65 psi from the in-tank pump.
Cheapest-first ladder
- Read freeze-frame data when the code set — fuel rail pressure at the moment of stall is the critical data point. On Skyactiv-G, anything below 4,000 psi at idle is HPFP or low-side supply problem; below 25 psi on PFI is in-tank pump or filter.
- Live-data scan at warm idle: rail pressure should be stable within +/- 200 psi on Skyactiv-G and +/- 3 psi on PFI. Pulsing or sagging pressure points at a weak HPFP, a worn lift pump, or a leaking injector bleeding the rail down.
- Check the in-tank lift pump current draw with an amp clamp — Skyactiv-G lift pumps spec around 4-7 amps at idle; high amp draw indicates internal pump wear.
- Inspect the fuel filter (some Skyactiv use a lifetime in-tank filter; PFI engines have a replaceable inline filter).
- Most expensive: HPFP replacement ($600-$1,200 part) or full in-tank pump assembly ($400-$700). Don't replace the HPFP before verifying low-side supply pressure — a weak in-tank lift pump starves the HPFP inlet and mimics HPFP failure for $400 less if caught.
Vehicle-specific patterns2014-2018 Mazda CX-5 and 2014-2017 Mazda3/6 Skyactiv-G 2.0L and 2.5L are the volume P1190 platforms — the in-tank fuel pump assembly is a known weak…
- 2014-2018Mazda CX-5 and 2014-2017 Mazda3/6 Skyactiv-G 2.0L and 2.5L are the volume P1190 platforms — the in-tank fuel pump assembly is a known weak point and Mazda issued multiple service updates on pump strainer redesigns; check VIN coverage at the dealer before quoting.
- 2014+Mazda3 Skyactiv-G 2.5L sees P1190 most often after long highway runs where the in-tank pump heats up and loses output, then stalls on deceleration into a parking lot.
- 2016+MX-5 Miata ND with Skyactiv-G 2.0L throws P1190 from a known HPFP cam-follower wear issue similar in pattern (but not identical mechanism) to the BMW N54/N20 HPFP follower failures — inspect the cam follower at the back of the head when the HPFP is removed.
- 2007-2013Mazdaspeed3 and Mazdaspeed6 with the 2.3L DISI turbo throw P1190 from the well-documented HPFP internal lobe wear on the intake cam that drives the high-pressure pump — Cobb and Corksport sell the upgraded cam and pump combo as a known fix.
Estimated repair$400 (in-tank pump assembly DIY on Skyactiv) to $1,600 (HPFP + cam follower + labor on Mazdaspeed).
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