himilefrontier

I'm wondering if anyone has experience with this one.My 98 Frontier has had the check engine light on for the last 87,000 miles(it has 187.000),and has a low idle speed.It will not idle unless you give it gas immediately after startup,and then it will idle,but the idle speed is low.I was thinking that the Idle Air Control Valve was bad,but the idle speed increases when the A/C is turned on,so I know it's workng.I had it scanned by "Auto Zone",but all the scanner said is that it had low idle speed.Could it be a mis adjusted TPS?Can you even adjust the TPS on these trucks?Any help will be greatly appreciated since I can't afford to spend $75 for the dealer diagnostic just to tell me what's wrong!

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1998 Nissan Frontier XE/2wd/5spd 1 owner, 264k miles
1985 Olds Cutlass, 350 Chevy, owned for 14 years
WANTED: 1968-1973 Datsun 510 or 1991-1994 Sentra SE-R
http://www.myspace.com/junkyardengineer

Ichabod

The URL below is the Chilton's idle adjustment procedure for my truck, which is a '93, but it has the same engine. Poke around the site a little bit and you might get lucky.


http://www.cybrrpartspro.com/cgi-win...kupResults.exe

Ichabod

himilefrontier

Actually,the engines are similar,but I believe that you have the KA24E(single cam),while I have the KA24DE(twin cam).A guy I worked with had a 95 4x2 and it had the KA24E(310,000 miles on the original engine!),so I assume that the 2 use the same engine.

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1998 Nissan Frontier XE/2wd/5spd 1 owner, 264k miles
1985 Olds Cutlass, 350 Chevy, owned for 14 years
WANTED: 1968-1973 Datsun 510 or 1991-1994 Sentra SE-R
http://www.myspace.com/junkyardengineer

Tolleyy

Have you ever replaced the 02 sensor? Also , I don't know if you're truck has this, but on the hardbodies there's a part called the air temp sensor mounted on the bottom of the air filter assy. It has two wires on it and the wires will just come off by themselves after time, causing a funky idle and check engine light.


Good luck

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95 WD-21 DVD/TV system-otherwise stock kid hauler
95 D-21 KC XE 3" lift- built for rockcrawlin!

himilefrontier

No,I've never replaced the O2 sensor.The IAC sensor is located in the air intake tube on the Frontiers,and not the filter assembly.The wiring appears fine on it though.As an added note:the Frontier(and all vehicles built after 96 ) has the OBDII computer,and therefore has 2 O2 sensors-one in the exhaust manifold and one AFTER the catalytic converter(to check it's efficiency).

__________________
1998 Nissan Frontier XE/2wd/5spd 1 owner, 264k miles
1985 Olds Cutlass, 350 Chevy, owned for 14 years
WANTED: 1968-1973 Datsun 510 or 1991-1994 Sentra SE-R
http://www.myspace.com/junkyardengineer