No start cold start problem start and shuts off

Tiny
MARIEBEN58
  • 2003 ACURA MDX
  • 165,000 MILES

Where is the idle control valve end I have cold start problem start and shuts off.

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Monday, November 19th, 2012 AT 4:30 AM

7 Replies

Tiny
DRCRANKNWRENCH
  • EXPERT
  • 3,444 POSTS

It is located on the intake manifold near the throttle body. It will have an electrical connector to help you find it. When removed it looks like a plunger. You can check operation by leaving out of its positon with electrical connection in place. Then start the car and see if it moves.

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Monday, November 19th, 2012 AT 6:23 AM
Tiny
MARIEBEN58
  • 2003 ACURA MDX
  • 165,000 MILES

I have problem on cold start when is warm okay.

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Thursday, March 9th, 2017 AT 3:07 PM (Merged)
Tiny
MARIEBEN58
  • MEMBER

No code and engine light.

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Thursday, March 9th, 2017 AT 3:07 PM (Merged)
Tiny
MARIEBEN58
  • MEMBER

How to check the wire throttle body?

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Thursday, March 9th, 2017 AT 3:07 PM (Merged)
Tiny
DRCRANKNWRENCH
  • EXPERT
  • 3,444 POSTS

It could be the Idle Air Control Valve, (IACV). Which is on the intake manifold near the throttle body. It may have failed or needs cleaning.

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Thursday, March 9th, 2017 AT 3:07 PM (Merged)
Tiny
JAYJOJO
  • 2003 ACURA MDX
  • 3.5L
  • 5 CYL
  • FWD
  • AUTOMATIC
  • 174,325 MILES

The car has been having a battery issues over the last week. But the battery has been change and there have been code issues since. The radio will not come on and now the car will not start when it is cold. Here are some codes that come up when tested. 61-1, 86-1, PO420. I need to get the issue diagnosed ASAP!

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Thursday, March 9th, 2017 AT 3:07 PM (Merged)
Tiny
STEVE W.
  • EXPERT
  • 3,708 POSTS

61-1- Battery voltage malfunction - probably caused by the battery change or a bad battery connection.

86-1- CAN Related failure - Could be virtually any connection that passes data to the ECU

P0420 - Catalyst System Efficiency Below Threshold (Bank 1) - Converter is getting weak, with that mileage it is probably a true code. Could also be a bad O2 sensor, No real way to check that without watching the real data on a scan tool.

The radio not working is likely a security problem. That will probably be a dealer issue as the code needs to be entered and if the battery was disconnected without knowing the security code to re-enter when it powered back on they can retrieve it.

Since the radio is already down, you could try a system reset -

Turn the ignition switch to LOCK (0), 1. And remove the key.
2. Disconnect the negative battery cable first, then positive.
3. Using a jumper wire, short the battery cables together.
4. Turn the ignition switch to ON (II), and wait 10 minutes.
5. Turn the ignition switch to LOCK (0), and remove the key.
6. Remove the jumper wire, and reconnect the positive battery cable first, then negative.
7. Check the applicable service information, and perform the appropriate reset/learn procedures.
8. Enter the anti-theft code, and restore customer settings.

The last step you will not be able to do.

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Thursday, March 9th, 2017 AT 3:07 PM (Merged)

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