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Showing results for tags 'turbo pressure'.
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Trying to track down an issue with boost I guess on my 530d If I drive slowly, it’s hardly noticeable…so allowing a more progressive acceleration…but I do like to plant it allot and really shouldn’t have a blip in power like this. Just feels laggy pre 2k revs and then pulls like train throughout rest of range…evident on upshift till it peaks over 2k again too ☹ It’s a pre-lci so don’t have a turbo pressure converter, has an electronic turbo actuator and that’s now new (old one was tested and ok too) – already done following: swirl flap/egr/egr cooler, cat/dpf/backbox deleted Crank case breather/map sensor, vac pressure convertor, ic pipework seals, vac lines...all been replaced air filter ok No faults on diagnostics New turbo/actuator aftermarket bigger intercooler oil pressure ok compression check done and ok injectors tested/refurbished whilst out/new seals fitted Replaced MAF with Bosch one two years back , but I’ve spotted is whilst have lag pre 2k now…unplugging it reduces the issue to 1.5k when removed I’ve had issue for a while and doesn’t get worse or anything…but bugging the hell out of me. If you have a manual car and clutch going…it’s that same delayed feeling of acceleration…saying that, it’s an auto box…they still have a clutch of sort, could this be effed? I don’t think its torque convertor as its nice through gears and have null fluctuating or anything Any ideas?