Hi there, I am currently troubleshooting a Volvo MCT135C skid loader equipped with a JCB Ecomax engine. The issue at hand involves a malfunction light and a complaint of low power. Diagnostic trouble codes indicate that the MDP is unable to update for all four injectors due to environmental conditions. Additionally, the MAF reading is showing instability and the exhaust temperature sensor recorded a high reading of 350 degrees after the machine was left off overnight, as per our laptop findings. I am seeking information on the specific conditions required for the ECM to update injector flow, or if there are any other potential underlying issues at play. The machine's serial number is GE0135TZLH2429406, while the engine's serial number is U0625717. Any assistance or guidance on this matter would be immensely valued.
Hello, have you found a solution to the issue I'm experiencing with my Volvo MCT 125C? I am facing the same problem and would like to know if you have any insights.
JJC_Mech inquired about troubleshooting a Volvo MCT135C skid loader equipped with a JCB Ecomax engine. A malfunction light is on with low power complaints, and trouble codes indicate issues with the MDP updating due to environmental conditions affecting all four injectors. Other observations include unstable MAF readings and high exhaust temp sensor readings after the machine sat overnight. Seeking guidance on necessary conditions for ECM injector flow updates and potential underlying issues. Machine serial number: GE0135TZLH2429406, engine serial number: U0625717. Any assistance on resolving these issues would be appreciated. Also, has anyone else experienced similar problems with JCB support for such equipment?
lpietroski mentioned that he was experiencing a similar issue with his skid steer and faced challenges due to the lack of support from the dealer, specifically for JCB machines. After being shut down for the winter, a solution was found by bringing in a technician from Volvo to update the engine software. The technician explained that these machines are a blend of Volvo and JCB technology, requiring a specialized program for maintenance. In addition to updating the software, a faulty intake manifold pressure sensor was replaced. This sensor, positioned at the EGR crossover dump point, tends to get clogged with soot over time. The technician also recommended replacing the crossover tube for better performance. Although the issue seemed resolved temporarily, occasional derating still occurred on long workdays, but could be reset with a key cycle. The long-term solution lies in the availability of consumer software, which is currently in development. Without adequate support for Volvo models, the decision to retain these machines hinges on the release of this software. Unfortunately, JCB does not provide assistance for the hybrid machines. For further details, additional information can be provided upon request to help resolve similar issues.
After a struggle to diagnose an issue with my JCB product, the dealer called in JCB for assistance. They discovered that the problem was due to corrupt software and were able to fix it by flashing the machine with fresh JCB software. Despite the $3000 in wasted parts, the machine is now operating like new.
Answer: - The diagnostic trouble codes indicate that the MDP is unable to update for all four injectors due to environmental conditions. The MAF reading is showing instability and the exhaust temperature sensor recorded a high reading of 350 degrees after the machine was left off overnight.
Answer: - The ECM requires stable environmental conditions for updating injector flow. In this case, the MDP is unable to update for all four injectors due to environmental conditions affecting the machine.
Answer: - In addition to the environmental conditions affecting the MDP's ability to update injector flow, other potential issues could be causing instability in the MAF reading and high exhaust temperature sensor readings. Further diagnostics may be needed to pinpoint any additional underlying issues.
Answer: - Seeking professional assistance or guidance for troubleshooting and resolving the specific issues identified in the diagnostic trouble codes, such as addressing the MDP update for injectors, stabilizing the MAF reading, and investigating the high exhaust temperature sensor readings, is recommended to effectively address the malfunction light and low power problem
Join hundreds of satisfied customers who have transformed their maintenance processes.
Sign up today and start optimizing your workflow.