91 CRX Idle Problem
 

When the engine is cold, idles great. After warm up, it will sit there and
surge from 1000 RPM to 1350 RPM about once a second. The car has 105 K on
it. I've tried running fuel injector cleaner through it with no help. Is
this a computer problem, or mechanical?

Re: 91 CRX Idle Problem
 

Temp indicator reading normal? Sometimes a defective thermostat can
cause this kind of thing.

Patch wrote:
>
> When the engine is cold, idles great. After warm up, it will sit there and
> surge from 1000 RPM to 1350 RPM about once a second. The car has 105 K on
> it. I've tried running fuel injector cleaner through it with no help. Is
> this a computer problem, or mechanical?

Re: 91 CRX Idle Problem
 

Temp indicator reading normal? Sometimes a defective thermostat can
cause this kind of thing.

Patch wrote:
>
> When the engine is cold, idles great. After warm up, it will sit there and
> surge from 1000 RPM to 1350 RPM about once a second. The car has 105 K on
> it. I've tried running fuel injector cleaner through it with no help. Is
> this a computer problem, or mechanical?

Re: 91 CRX Idle Problem
 

Temp indicator reading normal? Sometimes a defective thermostat can
cause this kind of thing.

Patch wrote:
>
> When the engine is cold, idles great. After warm up, it will sit there and
> surge from 1000 RPM to 1350 RPM about once a second. The car has 105 K on
> it. I've tried running fuel injector cleaner through it with no help. Is
> this a computer problem, or mechanical?

Re: 91 CRX Idle Problem
 

Check out http://resource.crx.org/modules.php?name=Forums

The website is specifically dedicated to CRX's. You'll find a lot of useful
information on there and people who are friendly and helpful.

Try resetting the ECU and see if it still does it.

--Viktor

"Patch" <bob_acord@hotmail.com> wrote in message
news:s9qYb.2677$lQ2.1629@okepread02...
> When the engine is cold, idles great. After warm up, it will sit there and
> surge from 1000 RPM to 1350 RPM about once a second. The car has 105 K on
> it. I've tried running fuel injector cleaner through it with no help. Is
> this a computer problem, or mechanical?
>
>

Re: 91 CRX Idle Problem
 

Check out http://resource.crx.org/modules.php?name=Forums

The website is specifically dedicated to CRX's. You'll find a lot of useful
information on there and people who are friendly and helpful.

Try resetting the ECU and see if it still does it.

--Viktor

"Patch" <bob_acord@hotmail.com> wrote in message
news:s9qYb.2677$lQ2.1629@okepread02...
> When the engine is cold, idles great. After warm up, it will sit there and
> surge from 1000 RPM to 1350 RPM about once a second. The car has 105 K on
> it. I've tried running fuel injector cleaner through it with no help. Is
> this a computer problem, or mechanical?
>
>

Re: 91 CRX Idle Problem
 

Check out http://resource.crx.org/modules.php?name=Forums

The website is specifically dedicated to CRX's. You'll find a lot of useful
information on there and people who are friendly and helpful.

Try resetting the ECU and see if it still does it.

--Viktor

"Patch" <bob_acord@hotmail.com> wrote in message
news:s9qYb.2677$lQ2.1629@okepread02...
> When the engine is cold, idles great. After warm up, it will sit there and
> surge from 1000 RPM to 1350 RPM about once a second. The car has 105 K on
> it. I've tried running fuel injector cleaner through it with no help. Is
> this a computer problem, or mechanical?
>
>

Re: 91 CRX Idle Problem
 

Do you have antifreeze?

"Patch" <bob_acord@hotmail.com> wrote in message
news:s9qYb.2677$lQ2.1629@okepread02...
> When the engine is cold, idles great. After warm up, it will sit there and
> surge from 1000 RPM to 1350 RPM about once a second. The car has 105 K on
> it. I've tried running fuel injector cleaner through it with no help. Is
> this a computer problem, or mechanical?
>
>

Re: 91 CRX Idle Problem
 

Do you have antifreeze?

"Patch" <bob_acord@hotmail.com> wrote in message
news:s9qYb.2677$lQ2.1629@okepread02...
> When the engine is cold, idles great. After warm up, it will sit there and
> surge from 1000 RPM to 1350 RPM about once a second. The car has 105 K on
> it. I've tried running fuel injector cleaner through it with no help. Is
> this a computer problem, or mechanical?
>
>

Re: 91 CRX Idle Problem
 

Do you have antifreeze?

"Patch" <bob_acord@hotmail.com> wrote in message
news:s9qYb.2677$lQ2.1629@okepread02...
> When the engine is cold, idles great. After warm up, it will sit there and
> surge from 1000 RPM to 1350 RPM about once a second. The car has 105 K on
> it. I've tried running fuel injector cleaner through it with no help. Is
> this a computer problem, or mechanical?
>
>

Re: 91 CRX Idle Problem
 

"electricked" <no_emails_please> wrote in message
news:54WdnYtsyMucBK_dRVn-hg@comcast.com...
> Check out http://resource.crx.org/modules.php?name=Forums
>
> The website is specifically dedicated to CRX's. You'll find a lot of
useful
> information on there and people who are friendly and helpful.
>
> Try resetting the ECU and see if it still does it.
>
> --Viktor

How do you reset the ECU?

Re: 91 CRX Idle Problem
 

"electricked" <no_emails_please> wrote in message
news:54WdnYtsyMucBK_dRVn-hg@comcast.com...
> Check out http://resource.crx.org/modules.php?name=Forums
>
> The website is specifically dedicated to CRX's. You'll find a lot of
useful
> information on there and people who are friendly and helpful.
>
> Try resetting the ECU and see if it still does it.
>
> --Viktor

How do you reset the ECU?

Re: 91 CRX Idle Problem
 

"electricked" <no_emails_please> wrote in message
news:54WdnYtsyMucBK_dRVn-hg@comcast.com...
> Check out http://resource.crx.org/modules.php?name=Forums
>
> The website is specifically dedicated to CRX's. You'll find a lot of
useful
> information on there and people who are friendly and helpful.
>
> Try resetting the ECU and see if it still does it.
>
> --Viktor

How do you reset the ECU?