Ok here we go on new (used) boost sensor i got..

using digital meter. pos. lead on brown/white >5.08
pos. lead on black/white >10.94

positve lead on brown/red >1.69
i checked the pin 2B on the ecu at idle or on position i got 3.35 instead of 2.3-2.7 .

so what do you guy's think... are these varience's acceptable. or do i have a ghost....

i also just dove into my turbo blown seals on both sides. who has the best rebuild kits for the price.

thanks again
jody hammock

 

WElllllll. The manual talks about the pin 2B. The manual says, that if the engine is running at idle, AND, if you pull the vacuum hose off the boost sensor, you should have 2.3 to 2.7volts on pin 2B. Thats on a turbo car.

So you say you have 3.35volts

Here's what I think....I know what is wrong. You have a boost/pressure sensor from a N/A car in your turbo car.

If you look at the manuals figures for a N/A car, it say you should have 3.5 to 4.0 volts under the conditions I wrote above.

Go to your sensor and write down every darn number that is on that thing and write back as to what they are. Then MAYBE we can see if I'm right or wrong.

That would explain strange running of the car....if its a turbo like I think it is.

 

About the figures on the black/white wire and the brown/white wire. It sounds like the battery was just a touch low. Maybe the key was to on for some time prior to making the readings.

But not really unsual figures on those two readings.

But the brown/red is wayyyyy wrong. Try the readings with your OLD sensor installed. The reading at 2B, that is.

 

by the way i wish i still lived down in dallas. used to live about three blocks from r.p.... there in garland. chris helped me alot..

 

i'll have that info tomarrow. night

thanks
jody hammock

 

--- boost sensor reads N350 9404 (I think I can't read all of the numbers.. thats great maybe somone pulled a fast one on me.. on the partstrader.. what should the # read because i don't have my old one...

 

Its sleeting right now and dark. I'll compare and write back. Anybody who wants to write in the right numbers just go ahead and write.

I'm going to this site and look. Might take some time. Prob not this day. http://www.mazdaformance.com/rx7parts.htm

 

My 87n/a has a N327 and my 87 TurboII has a N318.

I could not find the sensors in the site in my last post. But I think a N350 is for a series five, but I don't know if thats for a turbo or a N/A. Sorry bout that. Tired of looking.

The readings you gave matched a N/A , not a Turbo. My opinion says you have a sensor for a series five N/A, not a turbo. Just my opinion. I have no proof.

You do have a 87TurboII, right?

 

Hailers, it's for a series 5 NA, N370 is for the series 5 TII. I know this ALL too well....

 

SOnicRat solves another. So, Astrochild, you have the wrong sensor. Ask for your money back plus the postage plus your time (worth approx 20 bucks an hour, right?) and your lawyers fees.

Actually I had just typed in N350 in the SEarch engine on this creaky site and I did see SonicRats post/answers plus about ten other items dealing with the sensors. Some of those posts were seriously flawed. Oh well.

So thanks to SonicRat

 

Sadly I went through the same thing, got sent a N350. Oh well, took me *forever* to track down the N370, and it cost me about $75 to get it.

 

There is one aspect of this that didn't enter my pumpkin haid earlier. I'm faily sure that you need to get a series four boost/pressure sensor for your 87TurboII. That would be the N318.

The reason I say that is I have heard that a series four FCD will not work on a series five car. There is something about the series five not using a 12v input to the boost/pressure sensor.

Its like the series four has 1. A 12v input 2. a ground 3. a reference voltage of 4.5 volts 4. an output from the sensor to the ECU

Well, the series five has the above less the 12v input.

So I'm GUESSING that they are not interchangeble.

Key word: GUESSING (self educated guess *home schooling guess*).

 

thanks guy's ... one down turbo to rebuild again... maybe i'll get to drive it soon.....

 

by the way i was talking to my cusin down in irving he said that ice was the **** this morning. that outa be fun....

 

Just FYI stuff. I finaly found the part numbers at that site I mentioned above. I found the sensor under section 6600

Like the SonicRat said: Turbo N370-18-211 and the N/A is N350-18-211