josev

When I floor it, it takes a couple seconds to register then starts pushing. I cleaned the throttle bodies and it did not fix the issue. Throttle is still delayed. I do not know what is causing this. Please help

JSolo

iTrader: (14)

Did you do a throttle relearn? AT or MT? Try doing a tip in then WOT rather than WOT from the get go.

josev

Yes I did

TheDevilsG

I really hope im wrong about this, as i wouldn't wish this on anyone. If you replaced plugs, cleaned throttle bodies and maf sensors and it's still happening you may want to check the oil pressure or have someone check it for you if you cant.

here is a nice guide how to do it and what numbers you want to see at idle and at 2k rpm. Prays to the vq gods that your gallery gasket isn't the issue or its time for a metal replacement and around 1500-2k dollars to do it.

josev

Thank you for the response. I have not changed the spark plugs or cleaned the maf sensor. I will do that and hopefully it fixes it.

TheDevilsG

No problem, cleaning maf sensors is super easy. Plugs aren't too bad, but does take a little time.

I only mention gallery gasket because i had similar issues as you shortly after buying my car ( only 86k kms / 53k miles ) with zero engine lights warning me. When i checked my oil pressure numbers were low and sure enough it WAS the gallery gasket. Good news though is once having that replaced ( in 2019), my engine has been strong and ive even been doing track days with zero issues. So hopefully you dont have that issue, but if you do not to worry too much as long as a good shop does the work.

Said Amir

When you floor any car it takes a second or two then gives you the full power. Try giving the gas pedal a tap, then floor it. Because all that delay is mainly to get you into the lowest gear. But, if you are talking about throttle lag when just cruising and you are having to press on the gas pedal more to get a little up to speed then you will need a tune or a pedal commander.

JSolo

iTrader: (14)

Given the OP never answered my question I'll assume car in question is an AT. With that said, drop it down 3 gears with the paddles then floor it?

Noogie Lamont

To the thought of it being a gallery gasket issue is completely incorrect at this time. No codes as we would normally see with this issue. All because the OP is having some throttle lag could mean several things. The oil could be overfilled by several quarts, He could have bad plugs, or maybe just needs an air filter and MAF cleaning or the pedal assembly could be bad.

To suggest the OP spend several thousand dollars replacing the Gallery Gaskets at this stage is way to premature as once again no codes have thrown out.

The OP for all we know is coming from a Turbo car and finds the G lagging. I also find the G very lagging and delayed when I drive my wife's S4 with a JB4 tune when I go back and forth.

If I was the OP first thing on the list would be to drain the oil, do a refill of 4.5 quarts let sit overnight and fill to High mark. If that does not fix the issue then go on to other potential easy fixes.

TheDevilsG

i was simply suggesting he * check his oil pressure* (easy procedure to do or cheap have done). When i had that issue many people told me there was no way it was the case because i had no engine codes. My car did not throw a cel light once. I took on myself to check my oil pressure and that was it. Had i checked my oil pressure from the start it would have saved me weeks or even months of trouble shooting and stressing.

i at no point said go spend thousands on your car. I suggested check the oil pressure and provided a link to a video that shows how to do it and what oil pressure numbers you are looking for. Aka spend 30 minutes to check your oil pressure and know if it IS or IS NOT the issue.

all good, im just trying to help others from my own experience of being in a similar scenario at one point.

Noogie Lamont

@TheDevilsG,

I am going to give a great example of low oil pressure on my G. I ran a Purolator Boss Oil Filter with Redline 5w30. Car was running laggy as hell. I did some research as well as called Purolator and they confirmed that the Boss was not designed for high performance engines such as the VQ and that the filter was actually restricting flow. I immediately changed the oil and filter again and used a M1 and had no issues.

It's also very common to cars to be overfilled with oil as well. So that was just suggestion. As far as having the dreaded oil galley gasket issue the most common indicator is the code popping up. Simply doing an oil pressure test without a code on that type of a repair is something that should not be undertaken unless it's known. It's not an easy repair at all for a DIY at all.

To make things even better I also thought I had the same issue. Brought it to the dealer as well as two Nissan Dealers and two Independent Nissan Specialists who did not know or had nobody who wanted to do the repair. Finally brought it to Infiniti of Las Vegas and they just said it was a simple VVEL solenoid that was leaking all over the place throwing codes. The engine was caked in oil. By that time I had secured another vehicle 2014 GS350 F Sport. But I decided to keep the G since it was paid. It's still a good car but the lack of anyone wanting to work on or have the knowledge to work on these engines is still concerning. That's the main reason I got away from the BMW crowd even though the wife has an Audi S4 and a 2nd Gen Scion TC as a daily.

The huge issue is with the VQ it's very hard to diagnose issues and take advice on major repairs from "some guy" on the internet. I used to see this all the time when I ran in the Subaru crowd and that is why I see so many cars with issues in that scene. Unfortunately the G37 scene is getting to be the same.

The issue the OP is having could honestly be one of several problems up to and including no issues and someone who is not giving the 7AT(assuming) time to work. My guess honestly is the driver is not used to the 7AT which is very laggy and even feels slower then my daily driver 8th gen Civic.

I just think the OP should work the easy things first and then go on to more technically harder troubleshooting. Once again since no codes are present my bet is on the 7AT.

TheDevilsG

Its all good man. Again checking oil pressure is an easy diagnosis to determine if there is an issue or not. Hook up oil pressure gauge run engine to 80'c oil temp. Check psi at idle, check at 2k rpm. Done. It doesnt cost thousands to check oil pressure, it takes 30 minutes tops.

Anyhow no worries, we are all just trying to help each other, No one is playing the i know everything game. Cheers 🍺

Noogie Lamont

I get what you are saying and trying to do. However an oil pressure test does not indicate and gallery gaskets have anything wrong with them. Most people on this forum with the gallery gasket issue got a code followed by limp mode.

We all are here trying to help. However as stated in my previous post this reason is why half the WRXs on the road have some sort of major issue. It's because some "random guy" told them to get an accessport and run a certain tune and boost the psi sky high. And when I say "random guy" that's me Included lol.

What I have learned with the VQ37VHR is even the Nissan and Infiniti mechanics have no clue what's going on half the time. And the other half that do know what's going on dont even want to touch a problem that is 10-20 hours of labor depending on shortcuts.

I say to each his own. Considering the OP is long gone from this we will never know what the real story is.

Have a great day!

jose16388

thanks for the replies, I’ve learned vq’s are just naturally laggy and I’ve driven a couple and they’re the same. I got a pedal commander and used it for 6 months and now I’m tuned and no longer use it.