Jerky Acceleration

[fib]

Hi guys,

I'm getting pretty jerky acceleration, it feels like i'm driving over a staircase. Any ideas?

[Nic_A31]

One or more cylinders not firing.

Check fuel injection, spark, air, timing.

[blind_elk]

ATTESSA?

[fib]

Possibly the Ryco air filter I put in hmmm I'll put back the old ones to see how it goes, then sparks next.

Cheers,

fibbo.

[mad082]

air filter will have nothing to do with it, (unless you didn't take the wrapping off). more than likely a spark issue caused by dodgy coils or plugs. but you haven't exactly given us much info to work on

[r32gtr92]

hey guys my car is doing a similar thing, im gona change my plugs soon so ill let you no how it goes? if not im gessing it would be my coils = $$$$$$$$$ hahahahahaha

i let u no

[fib]

I'm taking it to the mechanic sometime this arvo.

Two weeks ago I had an idle/stall/jerky acceleration problem the mechanic cleaned the AFMs and it was all good... now the jerky accel thing again I read the AFM post on this forum about dry solder joints being the problem. I was about to open up the AFMs to have a go myself, but dad said his mechanic friend can have a look first... so I'll keep u guys updated hehe

[r32gtr92]

howd it go mate ^^^^^^

[fib]

I didn't trust the local mechanic so went ahead and did afew things myself. Cleaned the AFMs, opened and resoldered the joints, changed spark plugs (they had iridiums already in there doh). Ryco air filter. Still same problem.

Where the heck is the gtr battery located? lol

Took it to CRD today, man they have a tonne of skylines there! An R35 was being dyno'd the sound of that thing is SWEET!

Will keep this updated, hopefully it isnt coilpacks lol

[fib]

Problem solved thanks to CRD.

Had a vacuum hose to ?regulator split causing lean running replaced.

Knock sensor gave error codes, wiring upgraded, timing reset... they power ran it on dyno and it was all clear.

A bit pricey but I am very happy with the service and will gladly give CRD my business next time.

Cheers,

fibbo.

[dan_the_man]

I'm glad you're not fibbing.