Home |  Forums |  Search |  My Profile |  Chat  Photo Gallery |  Events Calendar |  Technical Documents  No messages |  New Posts |  Watched Topics |  Register   how do you disable speed limiter on EF model ???? Goto page Previous  1, 2, 3, 4  Next          Forum Index -> Interior Modifications Latest ratings Highest-ranked posts Highest-ranked topics Highest-ranked posters   data_mine Technical Contributor Age:27 Posts: 4859 Joined: 24 Nov 2004 Location: Canberra ACT, Australia View User Gallery (0) Posted: Sun Jul 20, 2008 6:27 pm    Post subject: Krytox wrote: wild_ef wrote: im interested to know how the airbags were caused to give way at a high speed :s not like they were under any mechanical stress You think that mechanical failure was smooth/quiet? The impact would have ruptured the sensor on the firewall among other things, static, shock. There was no impact, it was all done on a dyno. Think about it, the car thinks it's going 192km/h then all hell breaks loose (gearbox falls apart, tail shaft starts bashing the under body etc.), of course it's going to deploy the bags. Back to top FairmontXR6 Fordmods - Getting Side Ways Age:23 Posts: 827 Joined: 10 Sep 2006 Location: Brisbane QLD, Australia View User Gallery (3) Posted: Sun Jul 20, 2008 6:35 pm    Post subject: Thats, odd, isn't it? Airbags are only supposed to deploy if 2 of the 3 sensors (one near the gril and others on the sides of the engine bay) are crushed. The idea being, not to hurt people in low speed crashes, when their head/body is not declerating as fast as the airbags 'accelerate' out of the dash/wheel. So how does the 'shaking' of the car cause that? (I'm curious in case it leads to bigger problems etc) Back to top data_mine Technical Contributor Age:27 Posts: 4859 Joined: 24 Nov 2004 Location: Canberra ACT, Australia View User Gallery (0) Posted: Sun Jul 20, 2008 6:51 pm    Post subject: There's the front crash sensor, one under the dash, and a third 'safing' sensor in the SRS module. There was obviously enough shaking, combined with the fact the SRS module thought the car was doing 192 that it decided to deploy. There was no fault codes prior, and once the car 'rebuilt' (with new air bags) no fault codes after either. Had the same shaking occurred at regular speeds, nothing probably would've happened. Keep in mind however when the tail shaft broke in half, the half attached to the gearbox and the half still attached to the diff (wheels still spinning) were flopping around at 5500 RPM until the gearbox failed, and the hand brake was yanked on (to stop the rear wheels). That's A LOT of violent energy being beat into the car. Back to top snap0964 Technical Contributor Age:44 Posts: 3004 Joined: 13 Jan 2005 Location: South Coast NSW, Australia View User Gallery (10) Posted: Sun Jul 20, 2008 8:09 pm    Post subject: data_mine wrote: There was obviously enough shaking, combined with the fact the SRS module thought the car was doing 192 that it decided to deploy. The SRS module has no idea what speed the car is doing. An impact force equivalant to 25km or over will cause it to fire - this force is fore/aft. There must've been an equivalent jolt to fire the airbags. Again, it'd be pretty hard to diagnose exactly what caused it. Back to top data_mine Technical Contributor Age:27 Posts: 4859 Joined: 24 Nov 2004 Location: Canberra ACT, Australia View User Gallery (0) Posted: Sun Jul 20, 2008 9:27 pm    Post subject: Yes it does, because it's disabled at under 40km/h Back to top snap0964 Technical Contributor Age:44 Posts: 3004 Joined: 13 Jan 2005 Location: South Coast NSW, Australia View User Gallery (10) Posted: Mon Jul 21, 2008 1:00 am    Post subject: ^^^^^^Sounds more like the cruise control . So if I'm stationary, and someone travelling >=25kmh has a head on with me, the SRS won't activate ?? The SRS is independent of the ECU and a VSS input. Back to top data_mine Technical Contributor Age:27 Posts: 4859 Joined: 24 Nov 2004 Location: Canberra ACT, Australia View User Gallery (0) Posted: Mon Jul 21, 2008 5:54 pm    Post subject: I remembered the speed incorrectly . But the following is quoted from the manual. Quote: The airbag is a supplemental restraint system (SRS), designed to be used in conjunction with the seat belt. The system uses three crash sensors located in various parts of the vehicle body. A crash sensor is located in the front of the radiator support panel, another inside the vehicle, below the front of the centre console and the third crash sensor is integral with the control module that is found above the throttle pedal. In the event of of frontal collision in which the speed is is excess of 25km/h and at least two of the sensors send a signal simultaneously to the control module, the airbag is activated. That's what I've been working off, it may be wrong. Back to top efmarek Fordmods Stock as a Rock Age:22 Posts: 128 Joined: 13 Aug 2005 Location: Melbourne VIC, Australia View User Gallery (0) Posted: Mon Jul 21, 2008 8:14 pm    Post subject: jvangent wrote: I always thought that the limiter was in the instrument cluster! But I don’t see the need to go any faster…. Unless you are planning to do a high speed chase or something stupid. I have a Futura and think 180 is more than fast enough. The computer reads off the cluster doesnt it???? Or does the computer have its own little special function to read speed??......like using the wheel sensors instead of the transmission speedo gear??? Can someone please clear this up for me?......someone who actually knows. Back to top data_mine Technical Contributor Age:27 Posts: 4859 Joined: 24 Nov 2004 Location: Canberra ACT, Australia View User Gallery (0) Posted: Mon Jul 21, 2008 8:31 pm    Post subject: The limiter is in the ECU itself. It gets it speed from the cluster which gets it from the gearbox sender. B series get the speed from the ABS system. Back to top efmarek Fordmods Stock as a Rock Age:22 Posts: 128 Joined: 13 Aug 2005 Location: Melbourne VIC, Australia View User Gallery (0) Posted: Mon Jul 21, 2008 8:58 pm    Post subject: data_mine wrote: The limiter is in the ECU itself. It gets it speed from the cluster which gets it from the gearbox sender. B series get the speed from the ABS system. Thanks pal. U work as a technician?? Back to top data_mine Technical Contributor Age:27 Posts: 4859 Joined: 24 Nov 2004 Location: Canberra ACT, Australia View User Gallery (0) Posted: Mon Jul 21, 2008 10:06 pm    Post subject: No, I just spent a lot of time with my EL in pieces. Back to top arm79 Cruise Moderator Age:29 Posts: 3606 Joined: 05 Nov 2004 Location: Westside VIC, Australia View User Gallery (0) Posted: Mon Jul 21, 2008 10:21 pm    Post subject: data_mine wrote: I remembered the speed incorrectly . But the following is quoted from the manual. Quote: The airbag is a supplemental restraint system (SRS), designed to be used in conjunction with the seat belt. The system uses three crash sensors located in various parts of the vehicle body. A crash sensor is located in the front of the radiator support panel, another inside the vehicle, below the front of the centre console and the third crash sensor is integral with the control module that is found above the throttle pedal. In the event of of frontal collision in which the speed is is excess of 25km/h and at least two of the sensors send a signal simultaneously to the control module, the airbag is activated. You will find Ray is correct. There is no VSS input to the SRS ECU. The reason 25km/h is quoted is due to the strength of the magnet that holds the trigger roller in each sensor. The roller wont detach itself from the magnet unless the vehicle speed is over the preset limit. That's what I've been working off, it may be wrong. Back to top data_mine Technical Contributor Age:27 Posts: 4859 Joined: 24 Nov 2004 Location: Canberra ACT, Australia View User Gallery (0) Posted: Mon Jul 21, 2008 10:33 pm    Post subject: That'd work too. Either way, in this case, they went off. I was more showing the amount of damage caused when things go wrong at high speed - and this was tied down to a dyno. Back to top efLIAM Fordmods Parts Gopher Age:19 Posts: 99 Joined: 08 Jul 2008 Location: jimboomba QLD, Australia View User Gallery (2) Posted: Mon Jul 21, 2008 10:53 pm    Post subject: wtf where can you get up to 180+? (stupid question have some balls and put your foot to the floor) i have an ef auto with a speed limiter cut out chip i have had my ef up to 230kph but i did it at 3am on the highway besides almost s**t myself thats all that went wrong i do this almost every couple of weeks for the last 18 months and shes still going strong. doing those kinds of speeds on the street is no new thing to the world. my brother owns an RX3 13B turbo pushing 450hp at the wheels its a high 9 sec street car we have done 300+kph on the highway. so i say yeah of course theres risks and yeah if you see another car dont keep pushing it take your foot off but hey if you have the balls to do it then all to you man lol oh and if your a P plater dont let your dad find out you cut the speed limiter in his car Back to top snap0964 Technical Contributor Age:44 Posts: 3004 Joined: 13 Jan 2005 Location: South Coast NSW, Australia View User Gallery (10) Posted: Mon Jul 21, 2008 11:01 pm    Post subject: arm79 wrote: That's what I've been working off, it may be wrong. You have it correct Adrian (as usual). The SRS module sensor is calibrated to operate at a lower impact force than the crash sensors - however, it confirms along with one of the two crash sensors, that a collision has occurred. I'm not sure what effect loss of magnetism over time of the sensors bias magnets has - I'd suspect the modules diagnostic system would operate the thermal fuse to stop inadvertant operation. Be interesting to test a 94 EF's SRS system though and see if it actually operates lower than the quoted 25kmh impact. Back to top huggiebear Fordmods - Getting Side Ways Posts: 3211 Joined: 31 Oct 2005 Location: . QLD, Australia View User Gallery (28) Posted: Mon Jul 21, 2008 11:03 pm    Post subject: efLIAM wrote: wtf where can you get up to 180+? (stupid question have some balls and put your foot to the floor) i have an ef auto with a speed limiter cut out chip i have had my ef up to 230kph but i did it at 3am on the highway besides almost s**t myself thats all that went wrong i do this almost every couple of weeks for the last 18 months and shes still going strong. doing those kinds of speeds on the street is no new thing to the world. my brother owns an RX3 13B turbo pushing 450hp at the wheels its a high 9 sec street car we have done 300+kph on the highway. so i say yeah of course theres risks and yeah if you see another car dont keep pushing it take your foot off but hey if you have the balls to do it then all to you man lol oh and if your a P plater dont let your dad find out you cut the speed limiter in his car obviously looking at your age your young and stupid. what do you think will happen if an animal runs out infront of you? i had a fox eating roadkill on the highway right next to trucks not moving a month back. i didnt see it except the truck swerved majorly and we were only doing 100, so imagine 200+ and seeing an animal in the road. its enough to send you into a tree or head-on with another car... wise up buddy, most of us like living Back to top data_mine Technical Contributor Age:27 Posts: 4859 Joined: 24 Nov 2004 Location: Canberra ACT, Australia View User Gallery (0) Posted: Mon Jul 21, 2008 11:12 pm    Post subject: efLIAM wrote: wtf where can you get up to 180+? (stupid question have some balls and put your foot to the floor) i have an ef auto with a speed limiter cut out chip i have had my ef up to 230kph but i did it at 3am on the highway besides almost s**t myself thats all that went wrong i do this almost every couple of weeks for the last 18 months and shes still going strong. doing those kinds of speeds on the street is no new thing to the world. my brother owns an RX3 13B turbo pushing 450hp at the wheels its a high 9 sec street car we have done 300+kph on the highway. so i say yeah of course theres risks and yeah if you see another car dont keep pushing it take your foot off but hey if you have the balls to do it then all to you man lol oh and if your a P plater dont let your dad find out you cut the speed limiter in his car Count yourself lucky then mate. Stop doing stupid s**t on the public roads. Man up. Back to top cmour Fordmods Newbie Age:28 Posts: 3 Joined: 29 Mar 2008 Location: albury NSW, Australia View User Gallery (0) Posted: Sat Oct 11, 2008 10:13 pm    Post subject: ef/el fairmont 4000 rpm? hey there i dont woant to sound stupid and donnt want to go breaking any speed records but the other day i was going down the high way and whent to pass a truck ,and the old girl wouldnt go over 4000 rpm ? we have just spent a bit on it (head+gaskets 2000) so we dont go flogging it ,just curious ifany one could answer this silly question cheers p.s first timer Back to top edfairmont4.0 Fordmods - Getting Side Ways Age:22 Posts: 548 Joined: 26 Sep 2007 Location: Brisbane QLD, Australia View User Gallery (4) Posted: Sat Oct 11, 2008 10:23 pm    Post subject: sounds like a fuel issue or a blocked cat. Back to top cmour Fordmods Newbie Age:28 Posts: 3 Joined: 29 Mar 2008 Location: albury NSW, Australia View User Gallery (0) Posted: Sat Oct 11, 2008 10:48 pm    Post subject: well i have to replace the exaust cause on start up it has a rattle ,but just found it funny that it just would do any thing once foot whent down tryd it again today planted foot and it did the same thing will re thing servo where getting fuel from and look at cat .thanks for feed back Back to top Display posts from previous: All Posts1 Day7 Days2 Weeks1 Month3 Months6 Months1 Year Oldest FirstNewest First             Forum Index -> Interior Modifications Goto page Previous  1, 2, 3, 4  Next Page 3 of 4   (c)2002-2008 Matti Jones and Brad Evans [47 queries :: 0.0833 seconds ]