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Forum: Engine & Drivetrain

10-27-2017, 08:42 PM

Replies: 207

Z does not accelerate

Views: 57,016

Posted By juld0zer

I always thought it was throttle related because...

I always thought it was throttle related because i had a bug in my throttle map that would only randomly cause the severe lag where the revs increase extremely slowly. My guess is that the TPS or the...

Forum: Engine & Drivetrain

11-17-2016, 08:20 AM

Replies: 207

Z does not accelerate

Views: 57,016

Posted By juld0zer

So a bodgy throttle body harness extender was the...

So a bodgy throttle body harness extender was the cause?

Forum: Engine & Drivetrain

07-14-2015, 03:19 AM

Replies: 207

Z does not accelerate

Views: 57,016

Posted By juld0zer

Seems odd. These are low mileage cars yeah? I...

Seems odd. These are low mileage cars yeah?
I cleaned mine at approx 60000km (cant remember exact mileage before i sold it) and the amount of gunk on there was negligible. It was mostly just...

Forum: Engine & Drivetrain

07-11-2015, 08:02 AM

Replies: 207

Z does not accelerate

Views: 57,016

Posted By juld0zer

throttle bodies eh? That's a bit scary isn't...

throttle bodies eh?
That's a bit scary isn't it? DBW engine with two throttle bodies that cant tell the ECU they are shut when they shouldn't be? I guess it's better than wide open but ecu
thinking...

Forum: Engine & Drivetrain

10-20-2014, 09:28 AM

Replies: 207

Z does not accelerate

Views: 57,016

Posted By juld0zer

cleaning the throttle bodies and performing the 3...

cleaning the throttle bodies and performing the 3 relearns did not cure my random significant drop in throttle response. Like replacing all the VVT seals and o-rings, it cured a different annoying...

Forum: Engine & Drivetrain

10-18-2014, 08:34 PM

Replies: 207

Z does not accelerate

Views: 57,016

Posted By juld0zer

the crank sensor is one thing i have not changed....

the crank sensor is one thing i have not changed. partly due to lack of availability and price. cam sensors did SFA for me.
its been a week since i did the throttle cleaning

Forum: Engine & Drivetrain

10-16-2014, 05:26 PM

Replies: 207

Z does not accelerate

Views: 57,016

Posted By juld0zer

do you have an Uprev cable to datalog? i think...

do you have an Uprev cable to datalog?
i think you're on the right track there. Did you disconnect the throttle bodies from the loom or bump the butterfly at any point? they are incredibly sensitive...

Forum: Engine & Drivetrain

10-16-2014, 03:09 PM

Replies: 207

Z does not accelerate

Views: 57,016

Posted By juld0zer

Digi, that feeling of more accessible power if...

Digi, that feeling of more accessible power if you rev out 1st is probably purely due to engine momentum.
there is a programmed throttle restriction, which yes can be tuned out.
im generally a...

Forum: Engine & Drivetrain

10-16-2014, 10:15 AM

Replies: 207

Z does not accelerate

Views: 57,016

Posted By juld0zer

Digi! i thought you resolved your issue with a...

Digi! i thought you resolved your issue with a new brake switch?
That is exactly what it feels like and what it looks like. i have a datalog which managed to capture a normal drive and the lead up...

Forum: Engine & Drivetrain

10-15-2014, 03:55 PM

Replies: 207

Z does not accelerate

Views: 57,016

Posted By juld0zer

oh, nah i just didnt mention the...

oh, nah i just didnt mention the recalibration/relearns because it's assumed that the 3 relearns (gas pedal rest position, throttle body closed position and idle air volume) must be performed...

Forum: Engine & Drivetrain

10-12-2014, 06:25 PM

Replies: 207

Z does not accelerate

Views: 57,016

Posted By juld0zer

mate, i'll be honest - i'm close to giving up....

mate, i'll be honest - i'm close to giving up. i've ventured into a lot of unchartered territory and despite all my hours of datalogging and troubleshooting, almost $1000 in parts and many up's and...

Forum: Engine & Drivetrain

10-12-2014, 04:48 PM

Replies: 207

Z does not accelerate

Views: 57,016

Posted By juld0zer

i'd say once a year would be too frequent, maybe...

i'd say once a year would be too frequent, maybe every 1.5-2 years if it's a daily. But that depends on how it's driven, oil choice (and whether or not a catch can is used), and heaps of other...

Forum: Engine & Drivetrain

10-12-2014, 07:08 AM

Replies: 207

Z does not accelerate

Views: 57,016

Posted By juld0zer

Pedro & Carlitos, how are your cars these days? I...

Pedro & Carlitos, how are your cars these days? I finally cleaned my throttle bodies today. Took about 3hrs but i disconnected both and also operated the butterfly valves manually to ensure i removed...

Forum: Engine & Drivetrain

08-14-2014, 03:21 AM

Replies: 207

Z does not accelerate

Views: 57,016

Posted By juld0zer

hey mate, at least you got a CEL!! i have nothing...

hey mate, at least you got a CEL!! i have nothing to go by. Just instinct, determination, constant research and speculation.

what mods do you have? how about carlitos?

Forum: Engine & Drivetrain

07-08-2014, 06:46 AM

Replies: 207

Z does not accelerate

Views: 57,016

Posted By juld0zer

the brake switch could be the solution but keep...

the brake switch could be the solution but keep your mind open to other possibilities as i know of a few other possible causes/solutions.

for me, i'm 95% sure it's brake switch related as i can...

Forum: Engine & Drivetrain

07-07-2014, 05:46 AM

Replies: 207

Z does not accelerate

Views: 57,016

Posted By juld0zer

ok so i just went outside to check my car. my...

ok so i just went outside to check my car. my memory didn't fail me.

RHD models will have the cruise control brake switch on the left, stop lamp switch on the right.
LHD models will have it the...

Forum: Engine & Drivetrain

07-07-2014, 04:59 AM

Replies: 207

Z does not accelerate

Views: 57,016

Posted By juld0zer

sorry folks, either the LHD models have the...

sorry folks, either the LHD models have the sensors arranged differently or my memory has failed me.

i cant upload pics via this damn iphone but i'll point you to this thread:...

Forum: Engine & Drivetrain

07-06-2014, 10:33 PM

Replies: 207

Z does not accelerate

Views: 57,016

Posted By juld0zer

only risk i can see is if you use the cruise...

only risk i can see is if you use the cruise control - it wont know when you are braking so you might be fighting the cruise.

simple way to avoid this is to refrain from using cruise control, or...

Forum: Engine & Drivetrain

07-06-2014, 10:31 PM

Replies: 207

Z does not accelerate

Views: 57,016

Posted By juld0zer

have a read of my thread, esp the last page:...

have a read of my thread, esp the last page: http://www.the370z.com/engine-drivetrain/91124-help-severe-acceleration-lag.html

the switch on the left is mainly used to kill the cruise control when...

Forum: Engine & Drivetrain

07-06-2014, 04:00 PM

Replies: 207

Z does not accelerate

Views: 57,016

Posted By juld0zer

2 switches near the brake pedal. disconnect the...

2 switches near the brake pedal. disconnect the left one, then fit a jumper across the connector on the harness side (jumper the male connector, not the switch which you have now disabled)

nb:...

Forum: Engine & Drivetrain

06-23-2014, 09:49 AM

Replies: 207

Z does not accelerate

Views: 57,016

Posted By juld0zer

Here's the link to my thread:...

Here's the link to my thread: http://www.the370z.com/engine-drivetrain/91124-help-severe-acceleration-lag.html - I am just about to write up a detailed follow up so check in an hour from now.
...

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