Fuel Rail Pressure Too Low
The BOBCAT-P0087 (Bobcat) diesel fault code means: Fuel Rail Pressure Too Low. This is a critical severity code.
- Keep driving?
- No -- stop driving
- DIY difficulty
- intermediate
- Estimated cost
- $30-$80 filter / $600-$1,800 HP pump
A $30 car code reader can't do diesel. The HD7000 reads full-system codes and does parked DPF regen, idle/speed-limit, and service resets from the cab — on everything from a 6.7 Cummins/Power Stroke/Duramax pickup to Class-8 trucks (Detroit, Paccar, CAT, Volvo, Mack, International).
Check Price on AmazonAffiliate link -- we earn a commission at no extra cost to you.
Full-system 6/9/16-pin diesel scan tool for Cummins, Paccar, CAT, Detroit and more — plug-and-play, no subscription. A cheaper way to read heavy-duty codes a basic OBD2 scanner skips entirely.
Check Price on AmazonAffiliate link -- we earn a commission at no extra cost to you.
Common Symptoms
- No start / long crank on S650/T650
- Engine derate / limp mode
- Rough idle, stalling under load
Probable Causes (Ranked by Likelihood)
- Plugged primary fuel filter (Bobcat 7023589 / Kubota element) Very Likely
- Water in fuel / contaminated bulk tank fuel Likely
- Failed suction control valve (SCV) on Kubota HP pump Possible
- Weak lift pump unable to supply HP pump Possible
- Worn high-pressure pump Less Likely
Step-by-Step Diagnostic Procedure
Use Bobcat Service Analyzer to confirm P0087 active vs. historical, note rail pressure target vs. actual.
Replace primary fuel filter (400 hr interval) and water separator; drain any water.
Run SCV command test in Service Analyzer -- rail pressure should climb to ~160 MPa.
Check lift pump pressure at filter -- should be 15-30 psi at idle.
If SCV and filters are good and rail pressure still low, test HP pump volumetric output.
Frequently Asked Questions
What is Bobcat code P0087?
Bobcat P0087: Fuel Rail Pressure Too Low. This code is reported on Bobcat equipment running the described engine family.
Can I keep working with Bobcat code P0087?
Do not continue operating. Risk of engine damage or unsafe shutdown.
How much does Bobcat P0087 cost to fix?
Typical repair cost: $30-$80 filter / $600-$1,800 HP pump. Off-road diesel shop labor runs $125-$175/hr in 2026. Dealer diagnostic software (Bobcat Service Analyzer) is usually required.
P0087 on Other Platforms
The same code ID appears across other engines, vehicles, and equipment. Diagnostic flow varies by platform — see the matching breakdown: