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1998 Acura Integra RPMs dropping when release the gazoline

Tiny
BUSSIE
  • MEMBER
  • 1998 ACURA INTEGRA
Engine Mechanical problem
1998 Acura Integra Two Wheel Drive Manual 150000 miles

I clean the iac valve today and adjust the valve lash. Engine warm up look like better.I go take a ride with the car, all good. I am happy for 15 second.

RPMS dropping when I put the gear in neutral. If I do not press on the gaz pedal when I drive the rpm dropping to 500rpm - 0rpm. Engine dont stall but is tight. If the car are not moving RPM are good.
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Tuesday, October 13th, 2009 AT 10:18 PM

12 Replies

Tiny
JACOBANDNICKOLAS
  • MECHANIC
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Has the check engine light come on? Also, have you checked for vacuum leaks and the EGR?
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Tuesday, October 13th, 2009 AT 10:57 PM
Tiny
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I have some error code but the light do not come on
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Wednesday, October 14th, 2009 AT 4:35 AM
Tiny
JACOBANDNICKOLAS
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I need to know what the code is. If you take the car to a nationally recognized parts store, they will scan the computer and tell you the code. Most will do it for free.

Let me know what you find.
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Wednesday, October 14th, 2009 AT 7:08 AM
Tiny
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I go to the garage today. Code : P1337, CKR2, P0141, O2 SENSOR.

I have a b20b engine from japan, intake manifold b18b.
The guy said probaly the engine need more air (oxygen)Because the b18b intake and injector are little.

My O2 sensor wire are bad or cut?

The guy said I have no cranksensor because the engine was japanese. He right?

What I do?The guy said do nothing or go to see the car engine installer. I dont want to burn all my money for frankeinstein.
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Wednesday, October 14th, 2009 AT 12:02 PM
Tiny
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Did you change the engine or intake? If so, that is where the problem is coming from. As far as the crank sensor, I believe he is correct. They are different.
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Wednesday, October 14th, 2009 AT 12:16 PM
Tiny
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I edit the post before this post

I change the engine (b20b4). The engine car installer take a intake manifold in the garbage and is put this on my car. Intake manifold is (b18b1)

the engine car installer probaly keep the b20b intake manifold for resell
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Wednesday, October 14th, 2009 AT 12:22 PM
Tiny
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I would have to say that is the problem. Can you contact the installer?
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Wednesday, October 14th, 2009 AT 12:34 PM
Tiny
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Yes

you think the problem was the intake manifold and injector or is some bad wire connection or a bad ecu?
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Wednesday, October 14th, 2009 AT 1:01 PM
Tiny
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Maniflod and injection that the computer doesn't recognize.
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Wednesday, October 14th, 2009 AT 6:17 PM
Tiny
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Tps sensor
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Thursday, October 15th, 2009 AT 2:36 PM
Tiny
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Hi:
For some reason there is no past postings for me to refer to. Did you have a question about the TPS?
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Thursday, October 15th, 2009 AT 2:57 PM
Tiny
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Sorry I press send to fast

I will probaly change the intake manifold and injector b18b.

I find one b20b intake with injector but no tps sensor and air idle control valve and map sensor. My b18b sensor fit on the b20b intake manifold?But I dont no what is the unkown throttle body I have. Fit on a b18b intake manifold and cold air intake.

I dont understand why a b18b computer dont recognize a b18b intake manifold and injector. Computer b18b cant recognize a b20b engine?
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Thursday, October 15th, 2009 AT 4:28 PM

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