idle problems

flybikes1593 · 07-16-2009, 01:37 AM

i just bought my second mr2 after selling my first one. and it revs way lower than my first one. it revs at 1500 start up, but when it idles for a bit it goes down to about 800-900rpm and starts surging.

ive been told that there suppose to rev at 2000 then go down to 1500?

Any suggestions to fix this problem?

Papo J · 07-16-2009, 08:27 AM

It may just need a tune up or the timing set. Normally they do rev up between 1.5k-2k but it should settle back down to 850-900. Or, just turn the idle screw a bit.

The surging could also indicate air in the cooling system.

muffinman · 07-16-2009, 10:31 AM

Quote:

Originally Posted by flybikes1593

ive been told that there suppose to rev at 2000 then go down to 1500?

1500 is way to high for idle but as mentioned before try adjusting the idle screw and tune up.

flybikes1593 · 07-16-2009, 12:56 PM

thanks guys.

but im kind of new to mr2's, so where is the idle screw?

muffinman · 07-16-2009, 02:56 PM

it's on the intake under the black rubber cap on the lower left of picture

flybikes1593 · 07-17-2009, 12:32 AM

^^^^ alright thanks alot!

You guys helped out alot

Mark_Dorman · 07-17-2009, 03:39 AM

Let us know if that works...

flybikes1593 · 07-20-2009, 02:40 PM

Finally figured it out, i changed the spark plugs and coolant, but it was really a vacuum leak.

muffinman · 07-20-2009, 02:50 PM

congrats on getting it fixed

flybikes1593 · 07-21-2009, 01:10 AM

Thanks guys, it runs great now.

Just have to get a sway bar and rims and tires

07-16-2009, 01:37 AM	#1 (permalink)
flybikes1593 Cage Fighter Join Date: Jun 2009 Location: Neenah Posts: 126 Thanks: 0 Thanked 3 Times in 3 Posts iTrader Rating: (0/0% )	idle problems i just bought my second mr2 after selling my first one. and it revs way lower than my first one. it revs at 1500 start up, but when it idles for a bit it goes down to about 800-900rpm and starts surging. ive been told that there suppose to rev at 2000 then go down to 1500? Any suggestions to fix this problem?

07-16-2009, 08:27 AM	#2 (permalink)
Papo J 6SPD GTE Join Date: Sep 2006 Posts: 588 Thanks: 2 Thanked 50 Times in 49 Posts iTrader Rating: (0/0% )	It may just need a tune up or the timing set. Normally they do rev up between 1.5k-2k but it should settle back down to 850-900. Or, just turn the idle screw a bit. The surging could also indicate air in the cooling system. Last edited by Papo J; 07-16-2009 at 12:01 PM..

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07-16-2009, 12:56 PM	#4 (permalink)
flybikes1593 Cage Fighter Join Date: Jun 2009 Location: Neenah Posts: 126 Thanks: 0 Thanked 3 Times in 3 Posts iTrader Rating: (0/0% )	thanks guys. but im kind of new to mr2's, so where is the idle screw?

07-16-2009, 02:56 PM	#5 (permalink)
muffinman U-P-G-R-A-Y-E-D-D Join Date: Jan 2008 Location: Sunny South Florida Posts: 5,878 Thanks: 53 Thanked 282 Times in 271 Posts Blog Entries: 1 My Google Map iTrader Rating: (2/100% )	it's on the intake under the black rubber cap on the lower left of picture

07-17-2009, 12:32 AM	#6 (permalink)
flybikes1593 Cage Fighter Join Date: Jun 2009 Location: Neenah Posts: 126 Thanks: 0 Thanked 3 Times in 3 Posts iTrader Rating: (0/0% )	^^^^ alright thanks alot! You guys helped out alot

07-17-2009, 03:39 AM	#7 (permalink)
Mark_Dorman So long MR2's... Join Date: Apr 2008 Location: Pasadena, CA Posts: 4,666 Thanks: 97 Thanked 86 Times in 82 Posts Blog Entries: 1 iTrader Rating: (26/100% )	Let us know if that works...

07-20-2009, 02:40 PM	#8 (permalink)
flybikes1593 Cage Fighter Join Date: Jun 2009 Location: Neenah Posts: 126 Thanks: 0 Thanked 3 Times in 3 Posts iTrader Rating: (0/0% )	Finally figured it out, i changed the spark plugs and coolant, but it was really a vacuum leak.

07-20-2009, 02:50 PM	#9 (permalink)
muffinman U-P-G-R-A-Y-E-D-D Join Date: Jan 2008 Location: Sunny South Florida Posts: 5,878 Thanks: 53 Thanked 282 Times in 271 Posts Blog Entries: 1 My Google Map iTrader Rating: (2/100% )	congrats on getting it fixed

07-21-2009, 01:10 AM	#10 (permalink)
flybikes1593 Cage Fighter Join Date: Jun 2009 Location: Neenah Posts: 126 Thanks: 0 Thanked 3 Times in 3 Posts iTrader Rating: (0/0% )	Thanks guys, it runs great now. Just have to get a sway bar and rims and tires