HELP! Severe acceleration lag

juld0zer · 07-30-2014, 03:29 AM

i got my car back from the dealer.
i had a list lf warranty issues to fix:
- boot doesnt release on first press (new hatch springs fitted)
- boot struts provide little assistance at upper half of travel (new struts fitted)
- ac/volume controls are jittery (control panel backordered from japan)
- clutch fluid disappearing (slave cyl replaced)
- severe lag when at operating temp...

i took the tech for a test drive when i picked up the car. they blamed my stillen intakes but i argued. they said the cam and crank sensors are fine even though i pointed them to the exact page in the service manual.

the fault did occur during the test drive. tech tried to mask it by demonstrating that it 'is normal' by driving aggressively (launching at 2500-3000+ rpm and keeping revs above mid range). i pointed this out that the car shouldnt have to be driven like that all the time. he took the car into the workshop and brought it back out for me to drive home and monitor its progress.

i have to say, whatever happened in the workshop prior to me taking the car home seems to have cured it. i cant seem to make it happen. i've crawled home thru traffic a few times, driven it hard and gently. so far so good. rpm still sags to 500rpm at idle sometimes.

as for the slave cyl, my clutch feels better than the day i picked up the car 2nd hand with 15000km on the clock! pedal is heavier but has more feel. gearshifts are really smooth. 1st to 2nd no longer clunks. rev match is pretty much flawless.

let's see how she goes

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07-30-2014, 03:29 AM	#11 (permalink)
juld0zer Enthusiast Member Join Date: Nov 2012 Location: Sydney Posts: 428 Drives: 11 Nissan 370Z MB M6 Rep Power: 139	i got my car back from the dealer. i had a list lf warranty issues to fix: - boot doesnt release on first press (new hatch springs fitted) - boot struts provide little assistance at upper half of travel (new struts fitted) - ac/volume controls are jittery (control panel backordered from japan) - clutch fluid disappearing (slave cyl replaced) - severe lag when at operating temp... i took the tech for a test drive when i picked up the car. they blamed my stillen intakes but i argued. they said the cam and crank sensors are fine even though i pointed them to the exact page in the service manual. the fault did occur during the test drive. tech tried to mask it by demonstrating that it 'is normal' by driving aggressively (launching at 2500-3000+ rpm and keeping revs above mid range). i pointed this out that the car shouldnt have to be driven like that all the time. he took the car into the workshop and brought it back out for me to drive home and monitor its progress. i have to say, whatever happened in the workshop prior to me taking the car home seems to have cured it. i cant seem to make it happen. i've crawled home thru traffic a few times, driven it hard and gently. so far so good. rpm still sags to 500rpm at idle sometimes. as for the slave cyl, my clutch feels better than the day i picked up the car 2nd hand with 15000km on the clock! pedal is heavier but has more feel. gearshifts are really smooth. 1st to 2nd no longer clunks. rev match is pretty much flawless. let's see how she goes