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I figured I would post on here. So I have had a couple little issues with the car. Anyways car is running good mostly now.
When I step on the gas pedal I experience a slight lean condition every time. The one thing that I have changed is I removed the upper throttle body and then instead of putting the 90 degree coolant hose back to normal I decided to bypass it and run it straight to the water pump and I blocked off the ports on the upper throttle for those. Other then that I did not change anything. Does anyone that has done this know what is causing this? I figure it must have something to do with this. The lean condition is just for a split second when I get on the gas. The fuel map looks good there and nothing has been changed there. I love not having that coolant hose connected. Also since I am running an adaptronic ECU I don't really need it I do not believe. The car idles perfect and runs great except that one spot.
I took the car to work today and wanted to see how it did. So the lean condition is whenever I get on the gas. It does not matter the RPM or gear I am. So when I initially depress the gas pedal. It is very minor and only for a second, but would like to correct. So If you saw the other thread I had the car went lean coming down a mountain. I troubleshot and removed the Upper Throttle Body. I then bypassed the 90 degree coolant hose and went from Iron to water pump. I may check the TPS just to see if everything is good there. I was curious if the coolant hose bypass caused this. Everything was running perfect prior to it. So it has something to do with it I am pretty sure. Just seeing if anyone has any insight. as to what caused it or what I could do to fix this condition of course.
Mods (Mechanical)
13B street port
Adaptronic ECU
720/1000
Electric fan
Fluidyne radiator
130 amp Ford Tempo Alt
Greddy FMIC
BNR stg3
fuel pump rewire
Aeromotive 340 lph pump
3" Downpipe
2.5 RB Exhaust
since your adaptronic uses a map sensor, you probably have an intake leak after the throttle body which is throwing off your corrections. also make sure it is reading your TPS, the standalone uses TPS for transient throttle enrichment, unlike the old stock antique system the cars came with, which ironically was rather reliable.
it is even possible the reverse could likely be true, you may have inadvertantly fixed a vacuum leak after the car was tuned with lower vacuum reading from the leak. now the car is reading more vacuum and into leaner areas of the map.
you also aren't using any autotune features i take it? if you are, then in which case the wideband signal would need to be checked.
Yeah i was wondering if I had a vacuum leak possibly. I know usually that will lead to a higher idle. I am running open loop right now with no auto tune. I also have noticed a small hiccup in the idle here and there. Where it drops a couple hundred RPM's. I have my idle set at 1k RPMs. Before all this I didn't have that either. I will pull out the smoke machine and check for leaks sometime this week or this weekend. Also will check the TPS next if no vacuum leaks. Thanks for the replies.
So I checked and found a leak at one of the spider vacuum hoses. It had came unplugged. That fixed the lean condition when pedal was pressed. Then I went to take it back out and started acting funny. I then realized the temperature sensor was loose again. I just need to fix that now I guess.
shave the nub off the thermosensor and replace the pigtail with an EV1 injector clip, the stock connectors are getting too old to keep brushing them off.
I ended up finding the part at O'Reilly's Auto Parts. They had a couple different ones. I was in shock. So I bought the cheaper one as it looked good for $6. It was a little hard stripping the wire and crimping without removing anything but I got'er done. I changed the oil and ran it really hard and no issues. I am including pictures for reference. I will probably go buy another and replace the connector going to the BAC as that 1 isn't to good either and I have it zip tied to hold it on there..
10-16-17, 12:10 PM
