gerg 10,871 Posted January 26, 2020 Do I run a vacuum line from the map sensor to the manifold? Sent from my SM-G930F using TapatalkYes, having it disconnected will put the timing in full retard at all loads, as if you had no vac advance. It would cruise poorly and maybe even run a bit hotterSent from my CPH1903 using Tapatalk Share this post Link to post Share on other sites
GregHamilton 3 Posted January 27, 2020 Yes, having it disconnected will put the timing in full retard at all loads, as if you had no vac advance. It would cruise poorly and maybe even run a bit hotterSent from my CPH1903 using TapatalkDo you know how many bar the the factory xf map sensor is. I've noticed some on Ebay with the same plug and other vehicles use the same type of sensor. I could go to the wreckers and grab a few. Sent from my SM-G930F using Tapatalk Share this post Link to post Share on other sites
gerg 10,871 Posted January 27, 2020 Should be 1 bar, as there were never any factory boosted XFsSent from my CPH1903 using Tapatalk 1 GregHamilton reacted to this Share this post Link to post Share on other sites
GregHamilton 3 Posted January 30, 2020 Should be 1 bar, as there were never any factory boosted XFsSent from my CPH1903 using TapatalkDo I need to use a temp sender and a throttle position switch? I found this diagram online. Sent from my SM-G930F using Tapatalk Share this post Link to post Share on other sites
GregHamilton 3 Posted January 30, 2020 That's an ignition module for a Bosch reluctor type distributor. The module is basically a transistor that takes a small, pulsed voltage signal from the reluctor (the pointy wheel inside the dizzy) and turns it into a strong on/off 12v signal to the coil primary to create your sparks. The fact that you removed it says that it wasn't hooked up to start with.Sent from my CPH1903 using TapatalkThis is the old Weber. Do you know what the 2 things circled are?Sent from my SM-G930F using Tapatalk Share this post Link to post Share on other sites
gerg 10,871 Posted January 30, 2020 Yes the computer needs to see these signals to know how much fuel to deliver in what circumstancesSent from my CPH1903 using Tapatalk Share this post Link to post Share on other sites
gerg 10,871 Posted January 30, 2020 This is the old Weber. Do you know what the 2 things circled are?Sent from my SM-G930F using TapatalkThe bigger one looks like an idle-up solenoid (for ac), the small one is a fuel shutoff.Sent from my CPH1903 using Tapatalk Share this post Link to post Share on other sites
GregHamilton 3 Posted January 30, 2020 The bigger one looks like an idle-up solenoid (for ac), the small one is a fuel shutoff.Sent from my CPH1903 using TapatalkAre they required for the est setup? I'm going withba holley. Also do I need a throttle position switch?Sent from my SM-G930F using Tapatalk Share this post Link to post Share on other sites
GregHamilton 3 Posted January 30, 2020 The bigger one looks like an idle-up solenoid (for ac), the small one is a fuel shutoff.Sent from my CPH1903 using TapatalkWhat does a xf throttle position switch look like. I'll be able to retrofit it to suit the holley and use the existing plugSent from my SM-G930F using Tapatalk Share this post Link to post Share on other sites
gerg 10,871 Posted January 30, 2020 What does a xf throttle position switch look like. I'll be able to retrofit it to suit the holley and use the existing plugSent from my SM-G930F using TapatalkSorry now I'm lost... If you're using a carby then no you don't need any of the engine management bits. Only the stuff that makes the ignition work.Sent from my CPH1903 using Tapatalk Share this post Link to post Share on other sites
GregHamilton 3 Posted January 30, 2020 Sorry now I'm lost... If you're using a carby then no you don't need any of the engine management bits. Only the stuff that makes the ignition work.Sent from my CPH1903 using TapatalkYeah I know, but I'm trying to get the est working well. Do I need a throttle position switch for the est? I've ordered a new map switch and I'm just trying to see what else I need to make it function properly. Sent from my SM-G930F using Tapatalk Share this post Link to post Share on other sites
deankxf 20,290 Posted January 30, 2020 9 hours ago, GregHamilton said: This is the old Weber. Do you know what the 2 things circled are? Sent from my SM-G930F using Tapatalk smaller one needs power on it, its' the fuel cut solenoid to stop the car running on when you turn it off. the idle jet lives in there also. bigger one i haven't seen but looks like an idle up for air con(there's other methods also on various models of these carbys without the bulk of it.. won't need that one) Share this post Link to post Share on other sites
deankxf 20,290 Posted January 30, 2020 i'll have a read a bit later, but @Mr Polson might know what you need to know on the tps on carby, some had a wire coming off the throttle stop.. might be what it's for?(just a home/idle setting?) Share this post Link to post Share on other sites
Mr Polson 10,214 Posted January 30, 2020 i'll have a read a bit later, but [mention=21]Mr Polson[/mention] might know what you need to know on the tps on carby, some had a wire coming off the throttle stop.. might be what it's for?(just a home/idle setting?)Yep, TPS on XF EST was just a wire that lets the computer know if the throttle was on or off.I ran my ute for years without one, with no issues.I think the more important thing for the EST is the coolant temp sensor as it changes the timing as the motor warms up from memory. Share this post Link to post Share on other sites
GregHamilton 3 Posted January 30, 2020 Yep, TPS on XF EST was just a wire that lets the computer know if the throttle was on or off.I ran my ute for years without one, with no issues.I think the more important thing for the EST is the coolant temp sensor as it changes the timing as the motor warms up from memory.Is this the of/off throttle position switch in the picture above? The temp sender just goes from the thermostat housing with one of those blue plugs in the loom yeah?Sent from my SM-G930F using Tapatalk Share this post Link to post Share on other sites
Mr Polson 10,214 Posted January 30, 2020 Is this the of/off throttle position switch in the picture above? The temp sender just goes from the thermostat housing with one of those blue plugs in the loom yeah?Sent from my SM-G930F using TapatalkNah neither of those pictures above show the TPS.It's on the firewall side of the carby, with a wire attached, leading to a connector. I could get a photo tonight if need be. 1 gerg reacted to this Share this post Link to post Share on other sites
GregHamilton 3 Posted January 31, 2020 Nah neither of those pictures above show the TPS.It's on the firewall side of the carby, with a wire attached, leading to a connector. I could get a photo tonight if need be.That would be good. Thanks. Sent from my SM-G930F using Tapatalk Share this post Link to post Share on other sites
GregHamilton 3 Posted January 31, 2020 I'd also like to know what the following plugs in the loom are for if anyone knows. Sent from my SM-G930F using Tapatalk Share this post Link to post Share on other sites
SPArKy_Dave 8,881 Posted January 31, 2020 If memory serves... any red wire with green stripe (near the carby), is for the choke coil and fuel cut-off solenoid switch. (edit - circular plug for choke coil, and spade terminal for fuel cut solenoid) Share this post Link to post Share on other sites
GregHamilton 3 Posted January 31, 2020 If memory serves... any red wire with green stripe (near the carby), is for the choke coil and fuel cut-off solenoid switch. (edit - circular plug for choke coil, and spade terminal for fuel cut solenoid)Will any of that disconnected interfere with the est functioning correctly Sent from my SM-G930F using Tapatalk Share this post Link to post Share on other sites
deankxf 20,290 Posted January 31, 2020 6 hours ago, GregHamilton said: I'd also like to know what the following plugs in the loom are for if anyone knows. Sent from my SM-G930F using Tapatalk yellow one if long enough... is for the temp sender on the font of the head that 2 pin plug with the pink /green? is probably the coil wires those two air right angle female spade ones could be the air con pressure switch (goes on the air con pipe near the fire wall) the other i'd guess is oil sender. the plug below is something for a charcoal canister from memory Share this post Link to post Share on other sites
FORD_MAN 1,026 Posted February 2, 2020 Left to right connector, Black A/C?, Yellow 7 volt for weber choke, brown ?, red w/green line would be weber fuel cut solenoid. 2 pin plug if red w/green line, & pink w/blue line is EST coil wiring, connector near dissy is canister purge valve, 2 deankxf and roKWiz reacted to this Share this post Link to post Share on other sites
Mr Polson 10,214 Posted February 2, 2020 Completely forgot to get a photo the other day. My ute doesn't have, and has never had AC so can't help with that much. It is a 89 model so has EST, and did have plenty of emmisons rubbish that I've removed Overview These are either for AC (never fitted) or a PTC heater that was definitely on early 3.3L and I've heard some late model 4.1 had them as emmision control? It was basically a heated element for while the car was cold. Either way mine doesn't have it there. Fuel cut off solenoid. Closes off the fuel circuit when car is off to prevent anti-run on. Will run with it disconnected, won't idle, and runs poorly. Red wire from carb is the throttle position sensor/switch. Pretty sure it only knows if throttle is on or off. Yellow wire is 7V supply to auto choke from carb. Only hooked up for this photo I have the choke wound way way way off and the yellow wire off normally. This shows dizzy plug, on the dizzy itself, temp sensor wire (red one going to front of motor) and another emmisions connector, something to do with charcoal cannister I think. Another connector here for something. No idea what. 2 deankxf and roKWiz reacted to this Share this post Link to post Share on other sites
GregHamilton 3 Posted February 2, 2020 Completely forgot to get a photo the other day. My ute doesn't have, and has never had AC so can't help with that much. It is a 89 model so has EST, and did have plenty of emmisons rubbish that I've removed Overview These are either for AC (never fitted) or a PTC heater that was definitely on early 3.3L and I've heard some late model 4.1 had them as emmision control? It was basically a heated element for while the car was cold. Either way mine doesn't have it there. Fuel cut off solenoid. Closes off the fuel circuit when car is off to prevent anti-run on. Will run with it disconnected, won't idle, and runs poorly. Red wire from carb is the throttle position sensor/switch. Pretty sure it only knows if throttle is on or off. Yellow wire is 7V supply to auto choke from carb. Only hooked up for this photo I have the choke wound way way way off and the yellow wire off normally. This shows dizzy plug, on the dizzy itself, temp sensor wire (red one going to front of motor) and another emmisions connector, something to do with charcoal cannister I think. Another connector here for something. No idea what.Thanks heaps mate. Very informative I'm on the right track nowSent from my SM-G930F using Tapatalk 1 Mr Polson reacted to this Share this post Link to post Share on other sites
deankxf 20,290 Posted February 2, 2020 this one is coolant temp for the ECU 1 Mr Polson reacted to this Share this post Link to post Share on other sites