#1 |
Hello all! i just bought my first Turbo Coupe about a month ago and its been alot of fun to drive! The car had been sitting for about 6-7 years before I bought it and its had some questionable work done to it. Ive been in the process of fixing some sketchy "repairs" such as butchered/messy wiring jobs, and incorrect hoses used for the power steering (heater hose yikes). This forum has been invaluable in the information Ive been able to use to fix this thing. However there are 2 issues that have been stumping me. I'm not very familiar with this car or motor so I apologize for my ignorance in advance.
The first issue Ive had is with the fuel pump. It does not prime or run at all with the key on. the only way it runs is via a wire hooked to the blower motor fuse and then to the inertia switch connector. This is how the PO had it just to get the car to run. He mentioned that there was an issue with the inertia switch which is why he wired it this way. The pump runs constantly with the key on when wired this way and I would prefer to do things right and fix this properly. Ive read through the Fuel Pump Diagnostic page in the FAQ and followed the steps to test it. I may have missed something but as of now the inertia switch has tested fine, and I "THINK" the relay in the IRCM is ok. What I've discovered is that there is no power coming from the relay to the inertia switch connector with the key on UNLESS I've grounded the brown wire on the EEC Test Connector. So that leads me to believe there is a break between the relay and the connector somewhere. Am I correct? as I said I may have missed something and plan on going through the tests for the IRCM per the instructions in the FAQ page.
2nd issue is a CEL and a stall issue. I've replaced the distributor cap, rotor, wires and spark plugs with new motorcraft ones. My problem is that when I shift into neutral the rpms drop below 1000 and the engine will die most of the time. Sometimes it will catch itself and the rpms will go up and down before it stabilizes at 1000 again. When it does die, it starts right back up just fine. Its more of an issue when I'm slowing down or coming to a stop. I do have a CEL however when the car is just idling it isnt on. It usually only comes on when I start driving. However it does occasionally turn off when I am making boost and the rpms are over 3000, but when the rpms drop below that when I slow down the light comes back on. I have a scanner and ran through the KOEO and KOER procedures to pull codes. This is what I pulled up:
KOEO: 81, 10, 41, 65, 72
KOER: 28, 34, 41
Based on this info it appears I have a lean condition and a problem with the oxygen sensor? a problem with the VAF sensor which is in the VAM? and an issue with the EGR system. The PO told me when I was looking at the car that the EGR system had been deleted so that might explain the EGR code. Could these codes be what is causing my stall issue? I have a new walbro 255, and a kirban fpr set at 40 psi with the vacuum hose off. I get 18-20 of vacuum at idle as well. I appreciate and thank you for any help in advance!
The first issue Ive had is with the fuel pump. It does not prime or run at all with the key on. the only way it runs is via a wire hooked to the blower motor fuse and then to the inertia switch connector. This is how the PO had it just to get the car to run. He mentioned that there was an issue with the inertia switch which is why he wired it this way. The pump runs constantly with the key on when wired this way and I would prefer to do things right and fix this properly. Ive read through the Fuel Pump Diagnostic page in the FAQ and followed the steps to test it. I may have missed something but as of now the inertia switch has tested fine, and I "THINK" the relay in the IRCM is ok. What I've discovered is that there is no power coming from the relay to the inertia switch connector with the key on UNLESS I've grounded the brown wire on the EEC Test Connector. So that leads me to believe there is a break between the relay and the connector somewhere. Am I correct? as I said I may have missed something and plan on going through the tests for the IRCM per the instructions in the FAQ page.
2nd issue is a CEL and a stall issue. I've replaced the distributor cap, rotor, wires and spark plugs with new motorcraft ones. My problem is that when I shift into neutral the rpms drop below 1000 and the engine will die most of the time. Sometimes it will catch itself and the rpms will go up and down before it stabilizes at 1000 again. When it does die, it starts right back up just fine. Its more of an issue when I'm slowing down or coming to a stop. I do have a CEL however when the car is just idling it isnt on. It usually only comes on when I start driving. However it does occasionally turn off when I am making boost and the rpms are over 3000, but when the rpms drop below that when I slow down the light comes back on. I have a scanner and ran through the KOEO and KOER procedures to pull codes. This is what I pulled up:
KOEO: 81, 10, 41, 65, 72
KOER: 28, 34, 41
Based on this info it appears I have a lean condition and a problem with the oxygen sensor? a problem with the VAF sensor which is in the VAM? and an issue with the EGR system. The PO told me when I was looking at the car that the EGR system had been deleted so that might explain the EGR code. Could these codes be what is causing my stall issue? I have a new walbro 255, and a kirban fpr set at 40 psi with the vacuum hose off. I get 18-20 of vacuum at idle as well. I appreciate and thank you for any help in advance!