3 Bar Xenocron Now Doesent Run
 

Ever since I installed the new map sensor, the car has been not running ??? On a 98 ex Y8 with a xenocron 3 bar. I thought it was the chip so I got rid of the basemap and trying different maps in crome but nothing works. Now im starting to think I hooked it up wrong somehow. I totally wrecked the stock one, and I dont wanna revert back and have this be a complete waste of time. Anyone have any suggestions? I took a few pics and a quick video of the problem..

http://i58.photobucket.com/albums/g2...s/DSCN1259.jpg
http://i58.photobucket.com/albums/g2...s/DSCN1258.jpg
http://i58.photobucket.com/albums/g2...h_f1c9f874.jpg

Re: 3 Bar Xenocron Now Doesent Run
 

Is this so obvious nobody wants to reply?

Re: 3 Bar Xenocron Now Doesent Run
 

is it actually sealing? you double check that its wired right? CEL?

Re: 3 Bar Xenocron Now Doesent Run
 

here is a stupid ass question: did you load up a 3bar map sensor tune?

Re: 3 Bar Xenocron Now Doesent Run
 

Yes. Im not a pro at crome or anything but I have tried my own maps, other peoples maps, even 2.5, and 4.0 maps on crome.

Its sealing. I kinda tried testing the voltage with what little I know. I ended up getting 5v out of one of the wires. The reference one.. Um I donno, im confusing myself.
http://i58.photobucket.com/albums/g260/imburne/phpt.jpg

Re: 3 Bar Xenocron Now Doesent Run
 

nothing against xenocron but those dinky ass map sensors are garbage, we bought one from him and had it all hooked up right got to the the dyno (100) miles away then the tunner couldnt get the car to start, he blamed it on the shitty map sensor not the wiring and yes he also had crome pro with the 3bar selected, bought a 2.5 bar gm sensor from the guy at the dyno (90 ------- dollars) changed the settings in crome hooked up the new 2.5 and it worked flawlessly, i think 3 outta 10 of those map sensors are worth a ----, just my experience with them little fuckers, and looking at your video when the car did start thats the way it acted at the dyno

Re: 3 Bar Xenocron Now Doesent Run
 

To a novice like myself thats pretty valuable information. I can barely work on a car as it is. I dont need the product to be worthless.

Re: 3 Bar Xenocron Now Doesent Run
 

you should hit up xenocron for some help or a refund.
Hes always helped me out with my stupid problems. :y

Re: 3 Bar Xenocron Now Doesent Run
 

With my luck he will say it works and im a ------- idiot. But sure it couldent hurt. I will contact him if all else fails.

Re: 3 Bar Xenocron Now Doesent Run
 

nah he's cool man he'll work with you to help you figure something out ;)

Re: 3 Bar Xenocron Now Doesent Run
 

Put a volt meter on the sensor. Make sure its outputting about 1.8V with the key on. This is obviously on the signal out pin/wire.

My honest guess is you didn't wire it correctly, the sensor itself is defective, your settings in Crome are wrong, or the mounting of the sensor resulted in breakage. The way that sensor is mounted really makes me cringe. I would never mount that sensor anywhere but in the cabin of my car with a very small diameter vacuum line ran to it.

Re: 3 Bar Xenocron Now Doesent Run
 

+1 on you pushing too hard on the sensor to get it in there...double check the other side of the board to see if its ok

Re: 3 Bar Xenocron Now Doesent Run
 

The sensor is actually fine. I know it looks slammed in there but its not.

Re: 3 Bar Xenocron Now Doesent Run
 

Any other suggestions before I fist myself?

Re: 3 Bar Xenocron Now Doesent Run
 

g.m. 2.5 it looks like you can afford one

Re: 3 Bar Xenocron Now Doesent Run
 

Why do you think I can afford one?? Because my engine is full of cdm bling? Actually I need something like asap. I cant even driving this bitch now.

Anyone in the La, CA. area have a 2.5 or 3 bar f/s?

Re: 3 Bar Xenocron Now Doesent Run
 

So you contacted Chris? What did he say?

Re: 3 Bar Xenocron Now Doesent Run
 

Se said..

Trying to find a alternative right now.

Re: 3 Bar Xenocron Now Doesent Run
 

Faggot, have you run a volt meter on the damn sensor? If not, ------- yourself isn't the solution. Instead you should drink battery acid. Seriously, if you don't know how to use a volt meter and can't figure it out, you should quit playing with cars ASAP.

Re: 3 Bar Xenocron Now Doesent Run
 

send an email to customer service...ian and i will try to help you tomorrow once you rule out any kind of wiring problems as the cause

Re: 3 Bar Xenocron Now Doesent Run
 

Yes ------ I did run a volt meter. All I found was a 5volt power when the ignition was on. Thats why the picture was included as well. Plus I has two other people there. None good with aftermarket sensors but both of them with degrees in some electric field.



Thanks I appreciate it!

Re: 3 Bar Xenocron Now Doesent Run
 

Idiot. There are three wires. One is ground. One is power. One is signal out. If you put your VOM on the ground and power, you will get 5V. If you put your VOM on ground and signal, you will get various voltages. If you aren't getting 1.8V on the signal wire with key on, then the sensor is fucked up or you can't wire. If you wired it wrong, then you most likely fucked the sensor. All in all, I'm going on user error based on the way you mounted that sensor and the fact you don't know how to use a volt meter.

Re: 3 Bar Xenocron Now Doesent Run
 

I wired it per instructions. Dont ------- get crazy. I will rape jer mudder.

Re: 3 Bar Xenocron Now Doesent Run
 

I had the same problem with mine.

It was because the color code that was on the instructions from xeno , didnt match the color combo on my stock map plug.

So I did the guessing game and the car wouldt start.

Pulled out the voltmeter and found out what was what and switched the wires around, it fired right up.

Re: 3 Bar Xenocron Now Doesent Run
 

Oh mine fires up alright.. Now when I push on the gas its a different story. Gonna have to take out the voltmeter again and recheck ----.

Re: 3 Bar Xenocron Now Doesent Run
 

Tried everything under the sun. Nothing works. Im about to go get another oem sensor.. ----.

Re: 3 Bar Xenocron Now Doesent Run
 

Great thread...for those who call the sensor worthless, I'm sorry but you are doing something very wrong or you are just to cheap to buy a AEM or GM Style map sensor and not creative or patient enough to figure out a good way to mount these things nicely. Motorola didnt design these for YOU to use them in your Honda...so maybe you need to get a little more creative.

Second, to the OP...was this a DIY Map Sensor Kit where you soldered everything together or one that was done by me already assembled?

If it was a DIY Kit, I certainly cannot gaurantee your soldering abilities...these surface mount sensors are very touchy and the SSOP-8 size of these sensors makes it very hard to solder these up if you dont know what you are doing.

If it was a pre-assembled kit...each of these is tested in a vehicle, and the car us run on a TUNED map to make sure the sensor is good.

Third, I cannot for a second believe there isnt some sort of vacuum leak with the way you have your map sensor mounted...it may not look or sound like it just sitting there idling...but I wouldnt trust something as important as a map sensor in the location you have it.

Fourth, get a volt meter on the WHITE wire while the car is sitting there with the KOEO like someone else said...the way you have it mounted should be EASY to probe that spot.

Finally...I hope you are NOT using the GM 3 BAR Map sensor stuff in Crome...completely different map sensor. You need to have the XENOCRON 3 bar (or 4 bar) selected...

I have attached the ones I use (remove the .TXT from the end of the filename)

Re: 3 Bar Xenocron Now Doesent Run
 

I couldent get it to work for the life of me. Yes I am fairly new. Electronics is not my thing. On that note, when I was installing it I did have two electricians next to me. Everything in crome was correct. It was not the DIY one. It was already soldered and ready to go. I ended up just putting in a stock one and reburning a map for a honda sensor. I tried two different vacume setups as that definately could of been a issue. Didnt work though. I tried your 2.5, 3, and 4 bar setup in crome, nada. Even tried the motorola ones, nothing. I could of screwed it up, im not ruling that out. How, I donno.

Re: 3 Bar Xenocron Now Doesent Run
 

did you get that volt meter back on there?

im curious to see what is the problem.

-Luke

Re: 3 Bar Xenocron Now Doesent Run
 

This is not true. I have the GM data sheet. I have the Motorola's data sheet. Same damn formula for both.

Re: 3 Bar Xenocron Now Doesent Run
 

Email me the data sheet...

Re: 3 Bar Xenocron Now Doesent Run
 

Re: 3 Bar Xenocron Now Doesent Run
 

I'm going to have to disagree...

The functions are the same, but the Temp and Pressure error bands are very different, and if you have used both on the regular while tuning, you'll notice major differences in real world (not just on data sheets) usage.

My $0.02...

Re: 3 Bar Xenocron Now Doesent Run
 

I never said the sensors ran the same. I said they use the same formula. The formula John Cui has for the 3bar is wrong. I corrected it and posted a corrected version about 1.5 yrs ago. Whether you use it or not is a different story.

Re: 3 Bar Xenocron Now Doesent Run
 

In the meanwhile I have to find another map sensor.

Re: 3 Bar Xenocron Now Doesent Run
 

Send it back and I will test it out and see what I can do...but like I said, it was tested and run in a car here before it shipped :-\