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Forum: General Maintenance and Repair

11-17-2008, 04:09 PM

Replies: 17

Civic VX - Leaking EGR Valve problem

Views: 8,667

Posted By djenyc

Got the car back from the shop. The guy said he...

Got the car back from the shop. The guy said he replaced MAP sensor o-ring and cleaned up some carbon deposit. A couple hours of labor, no parts, came out to $140 total.

Forum: General Maintenance and Repair

11-17-2008, 06:22 AM

Replies: 17

Civic VX - Leaking EGR Valve problem

Views: 8,667

Posted By djenyc

Erik, I did compression check on '94 Civic and it...

Erik, I did compression check on '94 Civic and it had 197 psi in all 4 cylinder, didn't check '92 (both cars have the same idle problem). When I checked timing on '92 VX with engine idling steady,...

Forum: General Maintenance and Repair

11-17-2008, 03:14 AM

Replies: 17

Civic VX - Leaking EGR Valve problem

Views: 8,667

Posted By djenyc

Did some more troubleshooting on 92 VX: -...

Did some more troubleshooting on 92 VX:

- Removed throttle body/manifold and cleaned up carbon deposit, used new gaskets and some rtv sealant - test drove the car - no change.

- Swapped fuel...

Forum: General Maintenance and Repair

11-16-2008, 06:31 AM

Replies: 17

Civic VX - Leaking EGR Valve problem

Views: 8,667

Posted By djenyc

Did some more testing this morning on 92 Civic -...

Did some more testing this morning on 92 Civic - Blocked off PCV line, vacuum booster line, charcoal canister line - went for a test drive - no change, idling is still rough.

Tried pulling IACV...

Forum: General Maintenance and Repair

11-16-2008, 06:28 AM

Replies: 17

Civic VX - Leaking EGR Valve problem

Views: 8,667

Posted By djenyc

>>> Do the spark plugs look sooty (rich)? or...

>>> Do the spark plugs look sooty (rich)? or clean?
Erik, I changed spark plugs couple months ago when I got the car and the old ones were worn, but looked fine.

>>> Does the VX have a vacuum...

Forum: General Maintenance and Repair

11-16-2008, 04:04 AM

Replies: 17

Civic VX - Leaking EGR Valve problem

Views: 8,667

Posted By djenyc

Erik, yesterday I tried to set base idle on 94...

Erik, yesterday I tried to set base idle on 94 Civic - connected tach and pulled off IACV connector - the idle was rough and a bit high (~800 vs 450 spec). I think it's vacuum leak causing it to run...

Forum: General Maintenance and Repair

11-15-2008, 02:11 PM

Replies: 17

Civic VX - Leaking EGR Valve problem

Views: 8,667

Posted By djenyc

Ok, I just tried it this things out on a 94 VX: ...

Ok, I just tried it this things out on a 94 VX:

>> Another idea- start it up and pull a manifold vacuum hose loose and see if the problem gets that much worse.

I tried pulling EGR solenoid...

Forum: General Maintenance and Repair

11-15-2008, 12:13 PM

Replies: 17

Civic VX - Leaking EGR Valve problem

Views: 8,667

Posted By djenyc

So I tried this test again, this time EGR valve...

So I tried this test again, this time EGR valve diaphragm was pressurized from the same source as the manifold - and confirmed that EGR valve stayed closed but was leaking. So now I have 3 EGR valves...

Forum: General Maintenance and Repair

11-15-2008, 11:59 AM

Replies: 17

Civic VX - Leaking EGR Valve problem

Views: 8,667

Posted By djenyc

Erik, open EGR valve should dump the air in to...

Erik, open EGR valve should dump the air in to exhaust, but I'm seeing bubbles coming from around EGR valve shaft.

I've got the idea for this pressure test from several threads:...

Forum: General Maintenance and Repair

11-15-2008, 10:53 AM

Replies: 17

Civic VX - Leaking EGR Valve problem

Views: 8,667

Posted By djenyc

Civic VX - Leaking EGR Valve problem

I've been chasing down erratic idle on my 92 VX, probably due to a vacuum leak.
I reported it earlier in this thread:
https://www.gassavers.org/showthread.php?t=8444&highlight=bouncing

Today...

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