7th + URD AIC Kit
02-06-2007, 12:12 PM
#21
Contributing Member
Well, I don't know anything specific about the AFR calibrator box, just that it is supposed to achieve the same thing- make the ECU think it's at shoich mix when it isn't. My FTC1-E basically has a built-in ESC1, but I can program the pressure it turns on at (where as the ESC1 turns on at 1 psi, non-adjustable).
For the future, I am interested in possibly trying out another thing some time when I'm bored- use my Wideband O2 sensor system to simulate the narrow-band oxygen sensor signal, and get rid of my stock narrow-band oxygen sensor all together. I'm curious if it could help with some of the narrow-band's limitations, and if it doesn't really do anything for me I can just go back to stock...
EDIT: By the way Mark, I saw these new injectors URD has and thought they wree interesting: 390cc Lucas Disc Injectors. They're actualy cheaper than the 318cc Bosch Injecotrs...
For the future, I am interested in possibly trying out another thing some time when I'm bored- use my Wideband O2 sensor system to simulate the narrow-band oxygen sensor signal, and get rid of my stock narrow-band oxygen sensor all together. I'm curious if it could help with some of the narrow-band's limitations, and if it doesn't really do anything for me I can just go back to stock...
EDIT: By the way Mark, I saw these new injectors URD has and thought they wree interesting: 390cc Lucas Disc Injectors. They're actualy cheaper than the 318cc Bosch Injecotrs...
Last edited by mastacox; 02-06-2007 at 12:23 PM.
02-06-2007, 12:25 PM
#22
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Little tuning, little wheelin', etc.
02-06-2007, 02:34 PM
#24
Registered User
EDIT: By the way Mark, I saw these new injectors URD has and thought they were interesting: 390cc Lucas Disc Injectors. They're actually cheaper than the 318cc Bosch Injectors...
These Lucas discs sound like they have a mechanism that produces a nice spray.
So... maybe THAT's the next thing to go belly up... I get the engine back together, we turn the key, (IT RUNS!) I drive it for a while and realize I can't tune it. I go see my injector guy and we talk more about spray patterns, and next thing ya' know - I'm spending more money with URD (argh).
02-06-2007, 08:41 PM
#25
Contributing Member
LOL sorry dude, just thought they sounded interesting with the way they open and all... The description says their design can help with idling too... I'm going to keep them in mind for the future.
02-10-2007, 04:59 PM
#26
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Ok, so i'm going the bigger injector route. I'm still debating on the SMT vs FTC option, and I only have one more question 
What are your thoughts on URD's AFR sensor calibrator? (http://www.urdusa.com/product_info.p..._id=1230100028) It sounds like they are trying to do the same thing that SS was doing with their ESC1, but does it work any better? or is it just he ESC1 branded with the URD logo? If it is different than the ESC1, and works as advertised, then that would fix the 14.7:1 while in part throttle/low boost situation right?
What are your thoughts on URD's AFR sensor calibrator? (http://www.urdusa.com/product_info.p..._id=1230100028) It sounds like they are trying to do the same thing that SS was doing with their ESC1, but does it work any better? or is it just he ESC1 branded with the URD logo? If it is different than the ESC1, and works as advertised, then that would fix the 14.7:1 while in part throttle/low boost situation right?
The URD AFR Sensor Calibrator is for the newer trucks with the new style air/fuel ratio sensor as opposed to the old style O2 sensor. The air/fuel ratio sensor is Denso's version of a wideband sensor. Much more accurate then an O2 sensor. It gives a direct indication of fuel mixture as opposed to an O2 sensor which can only report if the mix is richer or leaner then 14.7:1, but not the exact mixture.
The URD AFR Sensor Calibrator is a mappable unit that uses a true 3 dementional map table like the URD MAF Calibrator or the MAF/Timing Calibrator (FTC1).
It will allow you to alter the fuel mixture in CLOSED LOOP mode and it is very precise and repeatable in its operation. It is best used in combination with a MAF Sensor Calibrator or an additional injector system.
For the 4Runner it is compatable with 1999 Cali and all 2000+ V6 engines.
For the Tacoma, it is compatable with the 2000 Cali and all 2001+ V6 engines.
A complete application guide can be found on the URD site.
Gadget
02-10-2007, 05:05 PM
#27
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Make sure you actually have the AFR sensor. Stick your head under you truck and see how many cats you have. I also have a 2000 5vz 4wd 4runner but it has federal emissions (which I didn't realize when I ordered the AFR calibrator) and I can't use. From my understanding: 2 cats= AFR (cali models)1 cat= front and rear O2 sensors (fed models).
Anyways I'll drop ship the AFR calibrator NIB to you for $200. Drop me a PM if you are interested.
Anyways I'll drop ship the AFR calibrator NIB to you for $200. Drop me a PM if you are interested.
The number of cats has nothing to do with what sensor O2 or AFR you have.
Your truck is a 2000 4Runner. Yours has an AFR sensor and not an O2 sensor.
Gadget
02-10-2007, 08:51 PM
#28
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Both sensors on my 4runner (pre and post kitty) have the same plugs, are you sure that I have an AFR sensor? Wouldn't the plugs be different if that were the case? I sure hope your right...
02-11-2007, 08:18 AM
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Thanks for squaring me away on this.
Gadget
03-26-2007, 11:50 AM
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So what is the easiest way to tell if I have 02 sensors or AFR sensors? I haven't looked at them closely before and I'm not sure what would differentiate the two. I have a 2000 4runner that is federal emissions as well, so I would like to make sure I don't put down the money for a box that isn't compatible.. tia
Last edited by TrackRunner; 03-26-2007 at 11:53 AM.
03-26-2007, 12:38 PM
#32
Contributing Member
Yup, look at the plugs and see how many contacts they have. An AFR Sensor has more contacts than a regular O2 sensor (how many I'm not sure, perhaps as many as 5).
03-26-2007, 02:35 PM
#34
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alright, I went out at lunchtime to check it out, and here's what I found:
- Both plugs are about the same size, and both have four wires going from the sensor to the plugs.
- The front sensor had this written on it:
Toyota
89465
-35530
Denso 0640
- The back sensor (post cat) had this written on it:
Toyota
89465
-35380
Denso 7911
I'm trying to find them on the web to see if they are different. Looks like two 02 sensors to me.. I hope I'm wrong though..
- Both plugs are about the same size, and both have four wires going from the sensor to the plugs.
- The front sensor had this written on it:
Toyota
89465
-35530
Denso 0640
- The back sensor (post cat) had this written on it:
Toyota
89465
-35380
Denso 7911
I'm trying to find them on the web to see if they are different. Looks like two 02 sensors to me.. I hope I'm wrong though..
03-26-2007, 03:02 PM
#35
Registered User
It'll depend on which engine you have, if you're manual or auto, and if you have CA emissions. "Federal Emissions" doesn't mean anything. California is the issue...
Denso's lookup:
http://www.densoaftermarket.com/cata...&model=4RUNNER
URD's lookup:
http://www.urdusa.com/product_info.p...s_id=430006000
Note that the part number(s) you read off of the parts don't match anywhere.
Denso's lookup:
http://www.densoaftermarket.com/cata...&model=4RUNNER
URD's lookup:
http://www.urdusa.com/product_info.p...s_id=430006000
Note that the part number(s) you read off of the parts don't match anywhere.
03-26-2007, 03:45 PM
#37
Registered User
Did you buy the truck new? and in LA? If so, then it's weird that you have different Denso part numbers front and rear right now.
03-26-2007, 03:49 PM
#38
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I just got off the phone with Denso and I definitely have two 02 sensors. So I am one of the ones that can't get the AFR Calibrator.
When I purchased the URD Fuel Upgrade kit, they had an option for 95-98 trucks thats included the built in O2 sensor signal conditioner. I chose 2000 since thats what year my truck is (and this obviously didn't include the 02 signal conditioner built in) Does this mean that the FTC1 will not operate correctly because it thinks I have an AFR sensor, when really I don't? tia
When I purchased the URD Fuel Upgrade kit, they had an option for 95-98 trucks thats included the built in O2 sensor signal conditioner. I chose 2000 since thats what year my truck is (and this obviously didn't include the 02 signal conditioner built in) Does this mean that the FTC1 will not operate correctly because it thinks I have an AFR sensor, when really I don't? tia
03-26-2007, 03:53 PM
#39
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midiwall: Sorry, I posted before I saw that you had replied.
I was under the impression that since my truck only has one cat, that it does not have CA emissions on it. I bought it used, and they had already had it smog tested. I gave my VIN number to the toyota parts department, and they confirmed that I have two 02 sensors.
I was under the impression that since my truck only has one cat, that it does not have CA emissions on it. I bought it used, and they had already had it smog tested. I gave my VIN number to the toyota parts department, and they confirmed that I have two 02 sensors.
Last edited by TrackRunner; 03-27-2007 at 12:42 PM.
03-27-2007, 12:43 PM
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Just to add to the confusion.. I talked to another Toyota parts department and got one of their technicians on the phone. I gave him my VIN, and he said I have three sensors. Going front to back, he said I have an air fuel sensor, then a front 02 sensor, then the cat, and then the back 02 sensor. I called the first shop again, gave them the VIN, and they also said that I had those three sensors.. Now I'm confused. Is the front air fuel sensor that they speak of not the one that the AFR Calibrator from URD uses to trick the ECU? Or is it a different sensor that has nothing to do with the calibrator...
