I’ve replaced the air filter, fuel filter, injectors (with new top seal, o-ring, & nylon sleeve), plugs, 2 top intake hoses + 2 hoses to the idle valve, and cap&rotor. The ignition wires are fairly new and idle and cold start valves were cleaned. The car runs smoother when not stumbling after replacing the injectors; however, my neighbor who runs a MBZ shop says the culprit is the fuel distributor (FD). He shop runs into a lot of faulty FDs due to age and I think that’s the step in the right direction. Does anyone agree with this? Maybe I should replace the fuel pressure regulator (FPR) and/or thermos/vacuum valve on top of the intake manifold. I didn’t mess with the mixture as suggested since when she runs cold or hot, she purrs. I’ve almost decided to tackle the rebuild myself and order a rebuild kit from ebay. Additionally, I’ll also be cleaning the air mixture assembly and throttle body while I’m in there if I do so. My current laundry list is as follows:

FD rebuild kit
FD gasket
EHA gaskets
Throttle body gasket
Air Flow Meter boot w/ gasket
Thermo/Vac valve (as needed)
FPR (as needed)

Is there something else I should consider cleaning or replacing interms of gasket, o-rings, valve, etc…

TIA,

sjsfiji

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sjsfiji

'87 W124 260E (DD)
98K orig. mi. @7/15
CLK 7-Spoke Forged Wheels
Neuspeed springs/Bilstein Sport
4/3 bump (F/R)

'97 993 Carrera
106K orig. mi.
Always driven like it's stolen