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Old 01-25-2009, 12:52 PM
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ps2cho ps2cho is offline
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Join Date: Jun 2006
Location: Chandler, Arizona
Posts: 3,525
Still unresolved misfires on my 300TE

Want to start a new thread as I am still struggling to resolve these misfires.

Here is the parts I have replaced so far:

New OVP
New Coolant Temperature Sensor
New Voltage Regulator
New Alternator
Injector's+Seals (previous owner + smoke tested)
New Fuses
Non-Resistor OEM Bosch H9DCO's
New Bosch Ignition Wires (checked for arching as well)
New Distributor Rotor + Cap + Housing
New Fuel Filter
New Breather Hoses
Used Fuel Distributor
New Ignition Coil
Used Fuel Pressure Regulator
New O2 sensor
Used EHA Valve
New Motor Mounts
-- Head work done yesterday:
New Head gasket, intake and exhaust gasket, front timing cover gasket.
Head skimmed and pressure tested
New Water pump.
New Valve Guides + Seals
-- Smoke tested for leaks
-- Compression is 185psi across the cylinders
Swapped Jetronic Brain /w used one
Swapped Fuel Pump Relay /w used one
Swapped Cold Start Valve /w used one
Swapped EZL /w used one


As you can see there has been alot of stuff thrown at this car...



It Misfires all the time and can only be felt at idle. I have done the engine mounts. After all the work I have done, it is 10x better and its a small misfire....but its still there as I can feel it.
I can also hear the engine surging rhythmically.

At this point....where should I go? Should I look into fuel delivery/computer or what?
Injectors as I have only had one replaced in my lifetime with the car?

At least I can safely say the head is absolutely 100% Perfect. Top end is set for at least another 100k miles.
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Last edited by ps2cho; 02-24-2009 at 04:09 AM.
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