Honda Car Forum


 

Go Back   Honda Car Forum - Accord Parts Civic Tuning Acura Racing > Honda Acura > Honda 2

Reply
 
LinkBack Thread Tools Display Modes
  #1 (permalink)  
Old 13 Apr 2004, 02:14 pm
Warren White
Guest
 
Posts: n/a
Default 89 Prelude Idling very rough

Great, 2 posts about the same car. BTW, the car is a 1989 Honda
Prelude S (2.0 SOHC)

This problem relates to it's idling. When the car is first started,
and the choke is engaged, there is not problem. When at highway
speeds, no problem.

When the car is warm, and out of gear (at a light, or clutch is in, or
coasting, or etc.), she idles at approx 500-700 RPMs.

I've checked the idle screw. If I make it idle above this
level(1000RPMs +), the car will diesel when turned off (continue to
run for 10-15 seconds.

I've checked the readout of the diagnostics built into the car. The
readout gives me a "two" (two pulses followed by a long pause). This
readout, when looked up in the repair manual, says the problem is with
the Vehicle Speed Sensor.

This problem started happening about the same time as when the
speedometer stopped working.

I've called several Honda Dealerships, asking for pricing on this
Vehicle Speed Sensor. The dealers claim that there is not one on my
car.

I'm bringing her in to the dealer to be hooked up to the computer for
a good reading. Is this going to be a waste of my time and money?

W
Reply With Quote
  #2 (permalink)  
Old 13 Apr 2004, 02:59 pm
Ted Jackson
Guest
 
Posts: n/a
Default Re: 89 Prelude Idling very rough

In article <cf0ec8dc.0404131114.4657b3d0@posting.google.com >,
white_warren@yahoo.com (Warren White) wrote:

> Great, 2 posts about the same car. BTW, the car is a 1989 Honda
> Prelude S (2.0 SOHC)
>
> This problem relates to it's idling. When the car is first started,
> and the choke is engaged, there is not problem. When at highway
> speeds, no problem.
>
> When the car is warm, and out of gear (at a light, or clutch is in, or
> coasting, or etc.), she idles at approx 500-700 RPMs.
>
> I've checked the idle screw. If I make it idle above this
> level(1000RPMs +), the car will diesel when turned off (continue to
> run for 10-15 seconds.
>
> I've checked the readout of the diagnostics built into the car. The
> readout gives me a "two" (two pulses followed by a long pause). This
> readout, when looked up in the repair manual, says the problem is with
> the Vehicle Speed Sensor.
>
> This problem started happening about the same time as when the
> speedometer stopped working.
>
> I've called several Honda Dealerships, asking for pricing on this
> Vehicle Speed Sensor. The dealers claim that there is not one on my
> car.
>
> I'm bringing her in to the dealer to be hooked up to the computer for
> a good reading. Is this going to be a waste of my time and money?
>
> W


Appears to me to be a good plan. The computer you mentioned in the last
paragraph should be able to identify the problem.
Reply With Quote
  #3 (permalink)  
Old 16 Apr 2004, 07:46 pm
Jon
Guest
 
Posts: n/a
Default Re: 89 Prelude Idling very rough

Warren White wrote:
> Great, 2 posts about the same car. BTW, the car is a 1989 Honda
> Prelude S (2.0 SOHC)
>
> This problem relates to it's idling. When the car is first started,
> and the choke is engaged, there is not problem. When at highway
> speeds, no problem.
>
> When the car is warm, and out of gear (at a light, or clutch is in, or
> coasting, or etc.), she idles at approx 500-700 RPMs.
>
> I've checked the idle screw. If I make it idle above this
> level(1000RPMs +), the car will diesel when turned off (continue to
> run for 10-15 seconds.
>
> I've checked the readout of the diagnostics built into the car. The
> readout gives me a "two" (two pulses followed by a long pause). This
> readout, when looked up in the repair manual, says the problem is with
> the Vehicle Speed Sensor.
>
> This problem started happening about the same time as when the
> speedometer stopped working.
>
> I've called several Honda Dealerships, asking for pricing on this
> Vehicle Speed Sensor. The dealers claim that there is not one on my
> car.
>
> I'm bringing her in to the dealer to be hooked up to the computer for
> a good reading. Is this going to be a waste of my time and money?
>
> W

As there is possible a sensor attached to the speedo cable, would
suggest that the computer is getting false readings nad getting mixed
up. Try replacing that first....You can correct me on this but it seems
possible with computers.
Reply With Quote
  #4 (permalink)  
Old 17 Apr 2004, 07:41 am
Warren
Guest
 
Posts: n/a
Default Re: 89 Prelude Idling very rough

Jon <fun@alphalink.com.au> wrote in message news:<40807e68@news.alphalink.com.au>...
> As there is possible a sensor attached to the speedo cable, would
> suggest that the computer is getting false readings nad getting mixed
> up. Try replacing that first....You can correct me on this but it seems
> possible with computers.


Jon,

I "received" a copy of the Service manual online (thanks, emule), and
found that the speed sensor IS on the back of the dash. The speedo
cable not working was in fact, as you (and I) guessed, the reason for
the really bad idling.

I had the speedo cable replaced a couple of days ago, with the
following results:
- better idle
- more engine power (better fuel mix, i guess)
- no more engine light
- I know exactly how fast I'm going. I had a rough idea before,
but this is nicer.

Thanks, everyone.
Reply With Quote
Reply


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
intermittent rough idling/stalling Stevoo Honda 3 2 08 Apr 2007 06:12 am
rough idling '98 Prelude will Honda 2 4 08 Sep 2005 09:42 pm
Rough idling black smoking 87 Integra Mauricio Tavares Acura 2 01 Feb 2005 08:35 am
Rough idling black smoking 87 Integra Mauricio Tavares Honda 2 2 01 Feb 2005 08:35 am
Rough Idling: EGR, Spark Plugs, or Thermostat? GusTheCat Honda 2 0 28 Jan 2004 03:30 pm


All times are GMT -5. The time now is 04:11 pm.


Attribution:
Honda News | Autoblog
Powered by Yahoo Answers




Powered by vBulletin®
Copyright ©2000 - 2019, Jelsoft Enterprises Ltd.
LinkBacks Enabled by vBSEO 3.6.0 PL2 © 2011, Crawlability, Inc.
HondaCarForum.com is not affiliated with Honda Motor Company in any way. Honda Motor Company does not sponsor, support, or endorse HondaCarForum.com in any way. Copyright/trademark/sales mark infringements are not intended or implied.