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370GT acceleration lag, bogging down.

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Old 09-14-2017 | 04:57 AM
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Nismo370
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370GT acceleration lag, bogging down.

Hi guys! I am new here.

I am now officially a proud owner of a 370gt 5 spd auto. Although the car comes with some serious issues.

The issues I am experiencing

- Throttle response is delayed, feels laggy.
- Manual mode feels like there is a 3 seconds delay between gears
- Sometimes the car pulls really hard, and other times the car feels like it wont accelerate hard, as if the engine is straining?

Is this a common issue with the 370gt guys? It makes it really hard to enjoy this car due to these issues

Any help would be much appreciated.
Old 09-14-2017 | 12:11 PM
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Do some research on here for a grounding kit. A lot of owners here have had great results from adding one to help improve the laggy auto transmission.

Sometimes a simple ECU reset helps as well.

How many miles on it? Spark plugs are supposed to be changed out at I think 105k miles. Another thing would be to clean out your throttle bodies.
Old 09-14-2017 | 02:06 PM
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I agree with Jpowers. I bought an 08 5spd auto and had the same issue when I first had it. Cleaned the throttle bodies and added the grounding kit. Shifts are super smooth now, I do still have lag down shifting from 4th to 3rd when I'm looking to get more power quickly though.
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Old 09-20-2017 | 11:50 AM
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Originally Posted by Patton6964
I agree with Jpowers. I bought an 08 5spd auto and had the same issue when I first had it. Cleaned the throttle bodies and added the grounding kit. Shifts are super smooth now, I do still have lag down shifting from 4th to 3rd when I'm looking to get more power quickly though.
If you have an 08 5 sp and your 4 - 3 delay issue is in manual mode , then press the gas first before downshifting from 4 to 3. for some reason when you downshift then hit the gas in that gear, the computer gets confused for a second.
@nismo370, Is that the delay you are talking about as well?
Old 09-20-2017 | 12:25 PM
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Also check the throttle bodies. Mine went bad and symptoms for me was terrible acceleration.
Old 09-21-2017 | 09:38 AM
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+1 for an ECU reset.

Also clean throttle bodies, and even run seafoam depending on your car mileage.




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