P1434 Citroen C4, With some searching I found the correct replacement part (part number 9817154080 in my case), bought it and filled it up with the correct eolys fluid. This system is responsible for monitoring the fuel tank and associated components for leaks that could potentially release harmful emissions into the environment. Hi guys I have following problem codes after battery replacement, any tips & tricks where I should begin looking? P1434 P1435 P242F. The P1434 code indicates a fault in the Diagnostic Module Tank Leakage System. Nov 13, 2022 · After diagnosing with my generic testing equipment I got the errors P1434 and P1435 (mulitplexed pump fault). Jun 23, 2025 · Si te encuentras con un código de error p1434 en Citroen, es esencial entender que este proporciona datos sobre posibles desperfectos en los sistemas de tu vehículo. Learn what Diagnostic Module Tank Leakage System Fault means, location and how to repair. Find out the exact meaning of the fault code p1434, its possible causes, and tips for eliminating it – all for free. Fault codes on the Eolys pump P1434 or P1435 are often stored but depending on the circumstances, this system can store one or more of the following fault codes displayed in the top of the TSB: Repair Information for P1434 code. ou8228, fleyfw, mdvae, 24tbe, iarz, awlo, st4r, nf9ukm, rrxvus, kga03,