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View Full Version : s13 cruise control acting up


todd5854
01-29-2013, 10:35 PM
Stock KA... swapped it manual, and there was a relay I was told to remove and jumper to get the cruise control to work again. I found 5 different guides, and they all said to jumper the same one, so that's what I did. Worked fine for the first two months

Now, when I turn it on, lets say im doing 70... if i press "set" it drops to 65. and maintains it for a little while. If I press and hold accel, no matter what it will accelerate to 70 and no more. if I hold it until it reaches 70 and then let go, it still drops to 65.

I checked where it connects to the throttle body, there is a nice tight cable connected..

My first thought is the vacuum pump / diaphragm is going bad. does that borrow vacuum from the cars system? Or does it use its own? hopefully its own....

todd5854
01-30-2013, 11:54 AM
anyone...?

Mikester
01-30-2013, 12:15 PM
258 Auto Speed Control Device :: Body Electrical :: Genuine Nissan Parts :: 240SX Parts (S13) 1989-1994 :: Nissan Parts, NISMO and Nissan Accessories - Courtesyparts.com (http://www.courtesyparts.com/240sx-parts-s13-1989-1994/genuine-nissan-parts/body-electrical/258-auto-speed-control-device/-c-1418_1419_1457_1465.html)

todd5854
01-31-2013, 10:04 AM
So you think I need the actual control module? I thought for sure it was that vacuum diaphragm, or maybe its pump