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1990 Acura Integra reving

Tiny
LOGANHATCH
  • MEMBER
  • 1990 ACURA INTEGRA
  • 4 CYL
  • FWD
  • MANUAL
  • 200,000 MILES
I have a 1990 Integra with a 1.8 liter engine. The problem is that when I turn it on it reves up and down from the idle to 3 to 4 grand then it holds there for like 10 min then it just goes up and down after a while. Dont know what to check.
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Friday, October 3rd, 2008 AT 11:53 AM

1 Reply

Tiny
KHLOW2008
  • MECHANIC
  • 41,815 POSTS
Hi loganhatch,

The cold start fast idle valve, throttle body and EACV are the 3 items you need to check.

1. Fast idle valve most probably has its internal valve worked loose by itself due to a bad O ring.

2. Throttle body might be stuck in open position due to debris from a bad air filter.

3. The EAVC might be stuck in open position due to internal fault.
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Sunday, October 26th, 2008 AT 7:58 PM

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