Jumpy needles, ses, and higher idle in park.
Thread Starter
Staging Lane
Joined: Feb 2005
Posts: 97
Likes: 0
From: NC
Jumpy needles, ses, and higher idle in park. Any comments are appreciated guys. This is kinda weird but ive noticed the needles in my car like to jump sometimes. The fuel, and oil pressure in particular. Nothing that REALLY concerns me but I would like to know what it is. The temp. guage also goes past 210 degrees at times but I had the radiator and everything checked out and flushed and they said nothing is wrong with it, so I kinda ignore it. My SES light comes on sometimes and goes off. The last time I got it checked at autozone they said it was an o2 sensor. I'm guessing thats still my problem with that. The other problem is sometimes after a drive I put it in park and the RPM's jump to about 800 rpm's idling instead of the usual 500. Im losing gas mileage so maybe it needs a tune up and is just acting weird? Anything I should worry about? Thanks ahead.
Thread Starter
Staging Lane
Joined: Feb 2005
Posts: 97
Likes: 0
From: NC
no LT's yet but im trying to get some. Just a LM, 3.73's, and a trans cooler. Ive done some research on here and 800 RPM's seems normal. I think im going to Seafoam it tomorrow. I havent done that in a while.
Last edited by Onez4u2bn; May 28, 2007 at 01:40 AM.
TECH Addict
Joined: Dec 2001
Posts: 2,907
Likes: 1
From: Bergen County, NJ
Whenever you encounter electrical problems like that step #1 should be to thoroughly clean and tighten battery connections and grounds. I always recommend that you don't ignore anomolies like you're seeing - lest you really have a problem, and wind up ignoring it.
9 times out of 10 jumpy gauges indicate a ground issue. Like said above, start with the battery and work out - clean the cable ends first and check ground connections on the block and heads.
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Thread Starter
Staging Lane
Joined: Feb 2005
Posts: 97
Likes: 0
From: NC
Thanks for your help guys. It's an A4. It doesnt jump to 800 all the time just sometimes unexpected. I'll have to go and check some grounds etc.. now just to be sure. Everything doesnt make me worried but I know it's never done it before. The car has the original alternator and a battery thats about a year old. It's also throwing a p1415 code now.....whats next? haha
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Verdad Gallardo Thread Starter
Staging Lane
Joined: Feb 2005
Posts: 97
Likes: 0
From: NC
Sorry to be such a pain in the *** about all this but this is what I found as far as the code goes. Whats it mean?
http://gearchatter.com/viewtopic9115...fe41f57fbfa252
http://gearchatter.com/viewtopic9115...fe41f57fbfa252
TECH Addict
Joined: Dec 2001
Posts: 2,907
Likes: 1
From: Bergen County, NJ
Clean your grounds - be sure to remove both battery connections and clean them - check that the 15mm bolt (ground wires) at the back of the of the left cylinder head is tight.
Reset the PCM when you've done all the cleaning and checking and see what you have.
Reset the PCM when you've done all the cleaning and checking and see what you have.
Got a question I have a buddy that is having electrical problem. I myself dont own a ls1 vehicle anymore so thats why im asking how many grounds are there on the back of the heads and which side are they on drivers side or passenger side?
