Help! Not sure if Supercharger is running right!

Hopefully they get it figured out, or it works itself out soon.

Have u disconnected the battery recently?

If not, I'd suggest leaving the negative side off for 30 minutes..... Especially when messing with an intake install or removal.

 

I did do this after the reinstall of stock last night. Learned that from this wonderful site.

Well I just got done at Toyota. They looked at it for me but came back saying there wasn't anything wrong with the supercharger. I asked if they drove it to feel it missing. Feel what I was feeling. They said they didn't need to. That the test they did do showed no issues.

Now my question is. Is the CAI causing the issue? To be honest I still kind of feel it with the stock on so I am not sure. Maybe im not used to how it's supposed to run?

I appreciate all the feedback, and everyone's help. This site is amazing and everyone on this site is awesome!

 

While you were there, you coulda test drove a n/a truck, see if you can feel a difference, I say that blindly, not knowing your history with *2nd gen* tacomas

 

no thats not how its supposed to run, from a stop it should pull just fine at partial throttle and not like its struggling.
At 0 boost the truck is still making approx 236HP at the crank and thats more than enough to get moving in a hurry. Upon higher load (more gas) the bypass valve on the supercharger closes and the truck should be making just over 300HP at the crank.

Is the intake to blame?
I dont know, Ive run stock and the AFE stage 2 Si with zero issues, but not the air raid.

as for them saying they didnt need to drive it to diagnose it, thats BULLSHIT.
The engine in boost and not in boost will have different afr needs and this combined with a load (moving the truck) should make the issue obvious. Sitting in a parking lot looking for a "code" will not always show problems... They should have taken it out.... Hell, they should allow YOU to drive, while a tech sits in the passenger seat with his laptop setup and plugged into the OBDII port and he runs techstream and watches parameters in real time.

Then u can drive it as he watches the screen... When u feel the truck do its thing, simply say "now", and see if the tech can either correspond your "feeling" with an objective result on his screen, or atleast feel the same thing you are.

Ive done it before just like this.

Id hate to imagine a fuel issue like a clogged fuel filter, injector, or faulty pump.... BUT, if it clears up when u give it more throttle, maybe somethings starving it of fuel?

I know when a friend and I swapped my fuel pump, I had STEEL SHAVINGS stuck to my OEM fuel filter sock! So, things do happen.

Id also (just in case) take a look at the plugs.

something is not right.......... these trucks are NOT slow/weak and shouldnt stumble upon takeoff.

 

very good point

 

Dammit! I have never had a Supercharger. And this is my first 2nd Gen Tacoma. So not sure how they respond without one. I took his word for it because they didn't charge me for it. But now I don't care if I have to pay. I just want it to work like I believe it should. But with that said. I'm wondering if it's just in my mind. Truck being lifted, with a CAI. Maybe I'm just crazy. Father in law has a 2014 he just bought too. Without a Supercharger. Im going to test drive his. Feel the low end and see if it is indeed all my imagination.

 

So I test drove my Father in laws 2014. No hesitation at all off the line. So I have no other choice but to go back to the dealership and demand that they take it for a drive. Pisses me off that they assured me that it was okay. Guess it's my own fault for not being more demanding. Live and learn I guess. Thanks for everyone's help. I truly appreciate it.

I just realized something. Last night when putting the stock CAI on, I unplugged the battery. But it wasn't for 30 mins like some have suggested. It was a quick unplug and plug right back in. Is there a reason for leaving it uplugged for 30 mins?

 

12% fuel trim at idle and 8% at 2.5krpm is lean which would explain a little loss of power. if the truck wasn't re-flashed after the s/c install it would feel numb, but you would think it would throw a mil. it does say specifically in my supercharger install instructions not to use aftermarket intakes or headers with this system for warranty reasons, but I wouldn't think it would cause a huge problem. also remember, a supercharged 4.0 does produce just over 300 hp, but it does it at 5400 rpm, not idle. good luck with the dealer, they can suck for sure.

 

For shits and giggles have the dealer tighten the rear leaf spring u-bolts.

 

Fuel trims, both short and long term, doesn't mean lean or rich...that just means the ECU is compensating to keep an ideal afr. In op case, fuel trim is adjusting 12% from its original map to support a 14.6:1 afr.

Having aftermarket parts tend to make the engine run leaner, but the ECU is compensating. Once it hits the threshold that it can't compensate anymore, then it'll throw a CEL.

I have a feeling it could be a dirty/faulty MAF sensor.

 

Okay so got called into work this evening. Was unable to look into it further. But on my way to work there is a small hill. And I noticed that it was in 3rd for quite a while. 2 mins or more and would not shift. Was up at 3000 rpms and just running high. Something with my transmission???

 

i wouldnt say mechanically theres something wrong with the transmission, but more towards sensors. its hard for me, and im sure everyone else, to tell without experiencing it ourselves. as suggested, a toyota tech would be your best bet along with access to your odb port

 

Okay I will head back. Going to give a call to someone first tomorrow and see if they have any ideas. So strange cause reading here, it seems like most of the time when there is an issue, a error code comes up. But I'm not getting any codes at all. But then again. I'm thinking on the display but everyone is probably seeing codes with some type of error tester.

 

Hey everyone. No update. But a question for you all. Since I now have the stock CAI back on. My question is. With a TRD supercharger, would it be best to leave the stock or put back on the Airaid CAI?

 

There's a lot of us running headers, intake, y pipe, 3" exhaust just fine with the blower.

The pos k&n and I think the newer trd intakes have an issue running lean even while n/a, and the volant can cause issues as well on an n/a truck but its not consistent.

The best way to read mixtures is with a wideband.

The reason toyota says not too run many other items is partially due to fueling issues since the stock fuel pump does drop off, some parts may not be proven by a toyota rep to be compatable, and finally....... Because these transmissions can only handle so much HP. The more add ons, the more potential HP.
The manuals eat clutches and the autos slip after too much HP. Its just the nature of HP, there's always a weak link and that item will be exploited.

That said, I've never had an issue like the OP has and I've been beating this truck up since 2008 and force fed since last may iirc. The absolute last thing one should feel is hesitation.

A roots blower makes it power across the entire range.... Centrifical have lag but wake up on the mid/high range like a raped ape.

 

"Best" would need a dyno of the 2 setups to get objective data.

Check in with memario...He's had some experience tracing issues with his blower.

Do u have a boost gauge or a wideband setup?

Can u get a video of this takeoff issue?

Please keep things legal in regards to the speed limit when getting a video, and refrain from posting about exceeding the speed limit while here on tacomaworld or the thread may get locked. Its just the rules here, but I'd def like a video showing the problem. The truck should haul ass, not make u possibly regret purchase of the blower.

What is your altitude?

 

I don't have a boost gauge or a wideband. But after reading here. I am thinking I should invest in them.

Salt Lake City is about 4000 feet above sea level.

I will see if I can get a video. And also a Dyno on the setup. Where would I go to do one of those?

And I do apologize for being a newbie and not knowing everything about these. My 1st Gen was a stock and I never upgraded anything. This new one was bought with the Charger and CAI already on. Even took it to Toyota for a buyer inspection and they told me it's running perfect before I bought it. And they didn't take it for a test drive then.

 

I was told by the dealer that they advised NOT to use anything other than the OEM CAI with the supercharger, simply because of possible issues with fuel metering, or technically air metering.

Now to be fair probably 90% of the people with aftermarket CAI have zero issues doing so, but Toyota as a dealer must advise on the safe side for warranty reasons, it's just business.

Also forced induction (SC/Turbos) make altitude less of an issue due to the fact you are positively pressurizing the intake to a set threshold.