97 maxima

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97maxima - 22 Oct 2004 04:13 GMT

help please? After putting a underdrive pully and cold air induction on my
maxima it hesitates at reproducaple spots in the rpm's usually aroun 1600
and 25000. Could the crank sensor affect this. Does the lighter fly
wheel affect this. I replaced knock sensor as computer had been giving me
this code for some time. I also replaced gaskets on valve covers since the
problem started because I have had a leaky spark plug gasket in back middle
plug hole. By the way found out that factor had seals upside down on one
of the covers. Car ran the same after. Sounds like out of time but only
at certain idle speeds. After passing the rpm it will again power fine,
but occaisionally again will hesitate. Not sure what to check next.
Thank you for any help with this issue.
greg
97 maxima 130000 miles

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Jorns - 23 Oct 2004 13:24 GMT

> help please? After putting a underdrive pully and cold air induction on my
> maxima it hesitates at reproducaple spots in the rpm's usually aroun 1600
> and 25000.

I'm not a Maxima owner, but this sounds like a problem with a
positional sensor (air flow meter or throttle position sensor). These
types of sensors can develop worn or contaminated spots that cause
them to fail at certain positions.

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JimV - 23 Oct 2004 19:15 GMT

First off, what do you think the underdrive pulley and CAI buy you?
Maybe 3 or 4 HP at max RPM and you probably lost most of your idle
alternator output. What a waste of time and money. Anyway, while you
were in there you likely damaged your AFM (oil will trash them) or
knocked a connector loose.

> help please? After putting a underdrive pully and cold air induction on my
> maxima it hesitates at reproducaple spots in the rpm's usually aroun 1600
[quoted text clipped - 9 lines]
> greg
> 97 maxima 130000 miles

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John Smith - 24 Oct 2004 04:43 GMT

I have K&N filters in my Maxima, 350Z, Stanza and Corvette and none of
them have had mass airflow sensor problems. Also, there is nothing
wrong with an under drive pulley and they do work well. I had one on my
Mustang and it worked great. No loss of electrical power or power
steering performance. The only problem is the price is a bit high and
making sure you get the proper belt. Once you find one that works you
will need to save the holder for the next time the belt is replaced.

> First off, what do you think the underdrive pulley and CAI buy you?
> Maybe 3 or 4 HP at max RPM and you probably lost most of your idle
[quoted text clipped - 19 lines]
>> greg
>> 97 maxima 130000 miles

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