I just picked up an AVCR used and had to print out my own manuals off Apexi's website. Anyways I was looking at the diagram of parts included if it was new and I noticed I知 missing several things, but I知 not too sure how important they are or if they can be substituted with parts from a local autoparts shop.



1) for item #2 solenoids, in the diagram is shows the nipples pointing 90* from each other. When I received it there the 2 nipples were 180* from each other. The 3rd hole for the nipple has nothing in it. What should I do? I'm assuming I'm missing item # 17?

2) Item #13 is the air filter. Can I just substitute with my own breather filter?

3) Items #18 and 19. I'm assuming they are just nipple adapters/reducers. Just replace with similar ones?

Now for the general questions.

In the manual they had specific vac line sizes and also the Tee adapters that were supposed to be included. Do the sizes of the vac lines make a significant difference in the performance of the boost controller.

I'm installing it this weekend so I'd like to have everything together before I start.

 

Yes, most of them are regular fittings...


Look at the instructions - the ports should be labeled.
NO
NC
COM
Does it say that?



It's actually an inline filter, but you really don't need to install one.

That is correct.


Although it does make a difference, it is more important to run as SHORT of a vacuum line as possible.
So, keep the lengths as small as possible and not worry about the hose diameter as much.


-Ted

 

Thanks Ted. I didnt have a chance to fully look through the install manual.

I remember seeing NO, NC, and COM ports, but I forget which 2 were occupied and which one was empty. Do all 3 need to be occupied, I wont have time to look through the install manual until this weekend when I am doing the install. So if I need to get a fitting I'll go grab one before them.

I didnt receive any of the Tees included in the parts diagram. Just wanted to make sure that they are just standard Tees and arent restrictors. Thanks.

 

You typically only need to use two out of the three.
Leave the third one open.
The manual will tell which of the two you need.


Nope, they are standard T's.
There are no restrictors in them.
Good luck!


-Ted

 

Awesome. Thanks for the quick replies Ted.

 

Quick question. I just finished the install on my AVCR and checked some of the inputs. My throttle % on my AVCR reads 27% while the throttle % on my SAFC2 reads 0%. I havent driven the car yet I was just scrolling through the features and such and noticed this. Any idea what it could be? I'm sure I tapped into the same wire that my SAFC2 was getting the throttle reading off the ECU.

Also I want to redo some of my vac lines to get more independent sources of vaccuum for my BOV and also the EBC. Right now I have about 1 source (nipple on the side of the LIM) that feeds too many different outputs (2 boost gauges, stock pressure sensor, BOV, vac source for AVCR, and wg actuator).

I have the rats nest removed, IIRC one or more of the 3 capped nipples on the front of the UIM are vac, but I forget which one(s).

 

That is odd.
It's suppose to show a lot lower than that...


Top and bottom are vacuum - pick one.
Middle one does not see vacuum and only boost.


-Ted

 

So the AVCR throttle reading is supposed to be above 0%? Is there a learning curve with the AVCR in relation to throttle? I havent driven the car yet or even started it up for that matter. Thanks for the help with the vac sources.

 

Throttle readings are somewhat still erratic. At times it will set at 0% throttle when off throttle and other times 1-3%. When I am actually on throttle it is an average of 30% higher than the throttle reading off my SAFC which is accurate. Acording to the SAFC2, at about 70% throttle the AVCR is already maxxed out at 100%.

Boost control is off and I've only gone full throttle a few times. Does it still need to self learn max throttle?

 

bump

 

I dunno if there is a self-learn on the TPS?

It really doesn't matter, as you're able to adjust LO and HI threshold though...



-Ted

 

I pressed the accelerator to WOT several times while the car was off with the ignition on strange enough it learned true 100% throttle. I just hope it can retain this in memory.

Another issue that has come up boost with the car off according to the Apexi pressure sensor reads 0.03 kg/cm2. I'm wondering if the pressure sensor is out of spec but wouldnt know what to test. Just all these little things bugging me that I'm **** about. FYI pressure sensor is attached securely against the firewall very close to the stock FPR (where it is teed) and has the nipple pointing down as stated in the instructions.

I have an additional boost gauge to compare with vac/boost readings off the AVCR pressure sensor.

 

I had alot of the same issuess with my avcr.

On the throttle thing, one of the buttons would calibrate it at 0% and 100%. I cant remember which arrow it was though. It still shoots up to 50 or 60% real quick like then slows down to wot even though 0% and 100% are correct.

On the pressure sensor, at my elevation it is just showing the pressure difference form sea level, is yor sdoing the same?

 

Thanks for the input. It looks like the method I used to help the AVCR learn true throttle readings has retained it's memory so far. It's still slightly off from my SAFC2 and occassionally reads 2-3% occassionally at true 0% throttle.

I'm honestly not sure if my pressure sensor is reading the difference from sea level. I honestly didnt know that the AVCR was that sophisticated of a boost controller. I'm in San Francisco, CA so I dont think elevation should be throwing off my readings.

I'm just baffled by the fact that readings such as throttle and sensor voltages could be different from my SAFC2 when they are wired into the same outputs (same ECU wire).

 

I'd be surprised if it actually read "0".
Most sensors are not calibrated, and I doubt the unit self-calibrates the sensor itself.
Even Haltechs don't show "0" with the engine off.

I think you're being too ****.


-Ted

 

Thanks for the reply Ted. I'll take the **** comment as a compliment.