Gentlemen, It appears that the ECM is cutting voltage to the Fuel Quantity Actuator. Twice while driving the car at 55 mph the engine quit and the voltage dropped to zero. The ECM gets 12 volts from pins 37 and 54 there voltage never dropped while the engine quits or chokes. Several times the engine chokes and the accelerator does not respond. Sometimes it dies, sometimes it goes into limb mode, or sometimes it goes back to normal. Is this the ECM malfunctioning or the Fuel Injector Pump fuel rack failing that is causing these problems?
I do not have a dealer that I have faith in to solve the problem, only ones that take your money. How do I find a indy with a Das Xentry? I live 20 miles west of DC and in desperate need of help with my daily drive. Scott 703-216-7367<?xml:namespace prefix = o ns = "urn:schemas-microsoft-com:office:office" /><o:p></o:p>

 

Having similar issues Scott , how did you end up fixing your problem please?

 

Thanks for your reply, the error code is P 1622

 

Yikes. Sounds like you have a project on your hands. However, you have some direction on what the problem is. Please let us know what the end resulting remedy is. Good luck.

 

Thanks for your guidance on this frustrating issue Plutoe. I will Confirm if resistance value at Fuel SOV (between 7.6 and 8.6 ohms). Then re-check the wire harness with intake manifold removed.

Is there a possibility that the Fuel SOV is malfunctioning because the crank position sensor may be intermittently defective and a causal effect to the P1622 code, i.e. the Fuel SOV shuts down? Just wondering if these sensors are prone to intermittent failures? All the Best!

 

Thank -you Pluto for updating your analysis, and sharing your knowledge, I am v frustrated with this car. could you please explain or further identify the pins or connector you are referencing? Are these pins on the fuel SOV push on connector? I hope to get these tests completed next week, and will post details.all the best

 

What was the outcome of this issue?
Tony

 

My problem was the connector at the SOV. Initially the trouble was the SOV, and I believe pull off plug connector pins were damaged somehow when the plug was removed and reinstalled. The stalling problem was fixed by cutting off the plug and soldering a used plug (with about 8 inches of wire) into the circuit (heat shrinks etc.) . I spent several $1000.00 before finding cause. Worst car problem I ever had.

It may be Very difficult to find a used plug to insert as a new one complete with harness is v expensive. Car is perfect today, runs perfectly with the new SOV and used plug. If you need more detail don't hesitate.