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my engine rpm only dropping and not holding constant, HELP!!

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#1: my engine rpm only dropping and not holding constant, HELP!! Author: BlitzMekenzie, Location: South

Posted: Fri Jun 26, 2009 6:35 pm
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hey my sr20 det engine rpm only dropping and not holding a steady RPM and cutting off, it usually idels at 1000 some rpm but now it dropping to about 500-0 and cutting off, there are times it idels good and then there have its days when it drops its idel and cut off, anyone know what might be the cause of this problem?? oh and it recently start to happen, about 1 week now and b4 it was good, any advice or anyone know what might and how to solve this prob, any advice will be greatly appreciated, thanks..

#2: Author: slimshiney,

Posted: Fri Jun 26, 2009 6:42 pm
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what do you mean by "dropping" is it revving up an down....black smoking ? check the minor things b4 assuming bigger stuff..your idle switch sticking?.....does it work well above the 1000 rpm mark?

#3: Author: Victory_Specification, Location: Right up your gearbox

Posted: Fri Jun 26, 2009 6:45 pm
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whena last you change the spark plugs? either that or probably the distributor

#4: Author: dregz,

Posted: Fri Jun 26, 2009 6:56 pm
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could it b the throttle body??? Confused

#5: Author: BlitzMekenzie, Location: South

Posted: Fri Jun 26, 2009 9:23 pm
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what do you mean by "dropping" is it revving up an down....black smoking ? check the minor things b4 assuming bigger stuff..your idle switch sticking?.....does it work well above the 1000 rpm mark?

^^^^^^^^^^^^^^^

yes its revving up and down, no black smoke. some times it does rev up and down between the 1000 rpm mark down and other times its good.

#6: Author: BlitzMekenzie, Location: South

Posted: Fri Jun 26, 2009 9:25 pm
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i didnt check anything as yet, it just recently start to happen so i just decided to ask if anyone had that prob b4 so i can narrow down what to check first

#7: Author: BlitzMekenzie, Location: South

Posted: Fri Jun 26, 2009 10:43 pm
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bump

#8: Author: sleepertercel, Location: 2kdftv baybee

Posted: Fri Jun 26, 2009 10:45 pm
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well could be a range of problems, but the easiest to check might be the tb...clean out the valve and idle switch and see what happens.

#9: Author: D_bodyguard, Location: Driving HARD ON the TASKA ROAD / M2 around 6am i nthe morning and 4pm, so clear the road for meh....

Posted: Fri Jun 26, 2009 11:47 pm
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Well multiple stuff....

1. trottle body
2. Air flow sensor
3. plugs and wirs
4. Timing (but mostly not )
5. Vacume lines can have ah break in one of them causeing it to flucate !!!

check these thing before going any further ...might find the problem in front yh eyes !!

#10: Author: janfar, Location: Liming by uncle Gaddafy.

Posted: Sat Jun 27, 2009 3:31 am
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I had a similar issue with a SR20de. It was a vacuum line with a small split on the end.

#11: Author: xtr_12, Location: Tunapuna

Posted: Sat Jun 27, 2009 3:43 am
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D_bodyguard wrote:

Well multiple stuff....

1. trottle body
2. Air flow sensor
3. plugs and wirs
4. Timing (but mostly not )
5. Vacume lines can have ah break in one of them causeing it to flucate !!!

check these thing before going any further ...might find the problem in front yh eyes !!

Most likely its the vacume lines to check first. Wink

#12: Author: slimshiney,

Posted: Sat Jun 27, 2009 11:25 am
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check vacuum lines if not...I had a similar issue...turned out to be a bad maf.... try a swap on the maf sensor with another...det # should 53j01.....or just service d dam car Laughing

#13: Author: buzz, Location: FL studio 8 b1tches !!1!

Posted: Sat Jun 27, 2009 11:31 am
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stop pressing the gas pedal erratically Neutral

#14: Author: slimshiney,

Posted: Sat Jun 27, 2009 11:38 am
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^^^^^^ Laughing

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