ALL Unichip Questions / Problems

[25FConv]

I am using a MSP MAF but yes the ES and the MSP use the same MAF.
This is nucking futs.....I am going outside to switch the MAF back to the SRI. I will keep you posted.

I don't know if it'll help but you should move your MAF back. I also noticed you're driving an ES protege. Does the ES use the same MAF and the speed?

 

[CHICO2003]

Not sure what happened but.. my car has suddenly transformed into a beast. Maybe it took a day to kick in... I don't know! I'm running it on Map B so perhaps that made a difference. No CEL so I guess I'm all set.

Definitely very pleased with this mod... despite the fact that my damn kickplate is still loose. I'll get to that later.

 

[Rush]

As far as the MAF relocation .. I'm assuming that if you're running an UNTUNED Unichip, that it's programmed to run with the MAF in the original location -- after the intake but before the turbo. BUT if you get your Unichip TUNED .. that it won't matter if you have your MAF relocated to your 'cold pipe' between the intercooler outlet and throttlebody.

Is this correct?

I have my MAF relocated, but haven't installed the Unichip yet .. cause I'm going to get it tuned to match all my engine mods. Y'know.

 

[turbolife]

As far as the MAF relocation .. I'm assuming that if you're running an UNTUNED Unichip, that it's programmed to run with the MAF in the original location -- after the intake but before the turbo. BUT if you get your Unichip TUNED .. that it won't matter if you have your MAF relocated to your 'cold pipe' between the intercooler outlet and throttlebody.

Is this correct?

I have my MAF relocated, but haven't installed the Unichip yet .. cause I'm going to get it tuned to match all my engine mods. Y'know.

IIRC, JDM Sam has hinted that having the MAF in the stock location is much better when running the UniChip. He explained why, but I don't remember.

 

[tricky]

pm's between me and Sam about relocating

Because it is not calibrated for the relocation. When you move it into a pressurized pipe it will not read the same as the non pressurized intake side.
There is also air reversion when the throttle is closed.

Can the UC be tuned for this, is it even possible?

thanks for the help.
Ben

yes but its still not recommended because of air reversion. when you close the throttle air goes back and it gets read again by the MAF before it gets released by the bypass or blowoff valve.
this period of time the maf is reading incorrect air flow.

 

[25FConv]

I am gonna assume I have an UNTUNED Unichip for right now and if thats the case maybe I need to have some serious verbage with the person I bought this from(freak), because I can't find evidence proving this to be the Unichip tuned by SU. So for now I am gonna go with what rush, boost, and turbo life are stating and relocate it to the stock position......worst case scenario nothing happens and i put it back on the IC pipe.

Is the rough startup and jerky driving because the ECU is still learning the Unichip?

 

[CHICO2003]

mine was pretty rough the first time around as well... almost stalled at idle

 

[1moreMPH]

i have had the best experience with the unichip. VERY easy intsall...i did it myself in about 45 mins. Stock, the car ran wayyy smoother and much faster. i fell in love with the msp all over again.

After getting it tuned, i re-fell in love and it works more than great. Never studders, pulls very hard and very smooth all the way up until 5000rpms, where it hits unichip-style vtec and rockets up to redline. I also use the suppled boost controller. It spikes ~11+psi very briefly and then quickly settles to 8.5psi solid.. I believe JDM Sam (or other tuners) can program the initial spike out, but i don't mind the spike to 11 as i believe i have the mods to support that for .1 seconds occassionally.

My switches were mis-labeled when i got it, but i knew that before hand and switched them no problem. my boost switch was labeled correct, but the power and map switches were switched, and the L.E.D. in the wrong spot.

I know for a fact that if you relocate the MAF you're going to have trouble with the unichip, and im almost positive that the swapped intake mani would throw a wrench in things as well...

 

[JDM Sam]

I will be still tuning these units, I am just personally switching over to a Haltech E8. They are still great for people with bolt ons, but for my power goals, this unit is not capable of handling the duties of what I need.

The switch for MAP B is not a true map.
It is a map activated @ WOT(wide open throttle) that pulls or adds timing. The original map advances timing.
There is no fuel map modification on this "map"

The boost controller solenoid is also used in other system such as the AEM Tru-boost controller, Haltech, AEM EMS and Gizmo.
It can be adjusted but I recommend using a Greddy, Blitz, HKS, or APEXi if you want a better EBC.

The MAF needs to be in the original OEM location for best results.
The car needs to be in perfect condition. No CEL's, vacuum leaks, worn 02/MAF sensors, etc.
Fresh spark plugs are recommended.

 

[25FConv]

Thanks for the help. New plugs here we go.

 

[Rush]

Whelp, guess I won't be running at optimum performance with my Unichip, when I get it installed .. since my MAF is relocated. And with having had to cut the intercooler-to-throttlebody pipe to relocate it, it can't go back! LOL.

 

[1moreMPH]

Rush -- you may want to tune it as soon as you put it on, in that case. I remember Sam telling me that relocating changes the unichip's tune a lot, and it may run like s***/detonate for you unless tuned to your car and setup. Ask around, but you may be in trouble if you just drop it in and go.

 

[turbolife]

Whelp, guess I won't be running at optimum performance with my Unichip, when I get it installed .. since my MAF is relocated. And with having had to cut the intercooler-to-throttlebody pipe to relocate it, it can't go back! LOL.

Get a piece of pipe and some couplers?

 

[25FConv]

Rush, Well you could try getting a hold of silicone couplers and putting the piece if IC piping back with the silicone couplers and some t-bolt clamps. Well I am and I will let you know how that turns out.

 

[Rush]

I'm not planning on installing the Unichip until I've finished with my other engine mods -- which, as of this point, is down to a set of WRX 440cc injectors, that're sitting in the basement.

I'm going to have those put in, and the Unichip installed and tuned, all at the same time. I didn't want to run my Unichip until I knew I could get it tuned .. that's why it's been sitting in a box for over a year, heh.

Hopefully, I'll get the tune down right for the MAF relocation. Because really, I don't want to move it back -- my MSP has run better with that MAF relocation than it ever ran with it by the intake.

 

[turbolife]

I'm not planning on installing the Unichip until I've finished with my other engine mods -- which, as of this point, is down to a set of WRX 440cc injectors, that're sitting in the basement.

I'm going to have those put in, and the Unichip installed and tuned, all at the same time. I didn't want to run my Unichip until I knew I could get it tuned .. that's why it's been sitting in a box for over a year, heh.

Hopefully, I'll get the tune down right for the MAF relocation. Because really, I don't want to move it back -- my MSP has run better with that MAF relocation than it ever ran with it by the intake.

With a proper map it will run well with it in the stock location too

 

[25FConv]

Lol, man I am past the point of frustration with this now.(braindead all i can do is laugh at this now. So I switched the position of the MAF to the Intake and put back the IC piping where the MAF was on teh IC pipe. My car starts up like a charm and warms up fine. So I let it warm up and idle for about 10 mins or so. and I am thinking great that solved it....I get in the car to go for a spin and test this out.....I put the car in reverse and give it gas as I release the clutch...so far so good and then(wow) as i let off the gas the car stalls. so I try this again...and same result.......so now the car would idle great but stall out when ever the throttle is released. So I am thinking I have a huge vacuum leak somwhere, possibly the replaced piping but i dont see how cause i used silicone couplers and t- connecters to tighten it down with....Any ideas?

I reverted to putting the MAF back on the piping for now, so my car is atleast driveable. I may just keep it as is and get a custom tune done.....


Speaking of which, JDM Sam, I am sorry I know your the King of the Cumstom Unichip tune(bowdown). However, I can't get my car to Texas in a weekend......so Rush, is it possible to send me a PM or post on here where in PA I can get a Unichip tune done? I commute frequently on weekends to NJ and usually go to Philly on Saturdays to Dave and Busters, so I figured since I am in the area maybe I can just go get a tune done during the daytime there. Thank in advance.

 

[25FConv]

In the meantime, for now with the MAF on the IC piping, the car is starting to stabilze a lil bit, but it still bogs in the lower rpm range, after that it is pretty smooth.(second)

 

[turbolife]

In the meantime, for now with the MAF on the IC piping, the car is starting to stabilze a lil bit, but it still bogs in the lower rpm range, after that it is pretty smooth.(second)

I would do a thorough search for vacuum or boost leaks. Make a boost leak tester and have at it.

 

[25FConv]

i have done countless vacuum leak checks, how can go about makin a boost leak tester?