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Forum: General Maintenance and Repair

12-10-2007, 07:47 PM

Replies: 54

Civic VX miss under load

Views: 16,282

Posted By oh95vx

I've rebooted the ECU dozens of times with no...

I've rebooted the ECU dozens of times with no improvement I can detect. The ignition timing still acts weird. I even tried a different ECU. Same song, still off-key.

Might work for somebody...

Forum: General Maintenance and Repair

12-09-2007, 08:21 PM

Replies: 54

Civic VX miss under load

Views: 16,282

Posted By oh95vx

Hi, I'm the wacko who started this thread way...

Hi, I'm the wacko who started this thread way back in the spring. Interesting to see the thread has come back to life. I'm not the only one with this problem, which means there might be enough of...

Forum: General Maintenance and Repair

05-27-2007, 08:47 PM

Replies: 54

Civic VX miss under load

Views: 16,282

Posted By oh95vx

Yeah, the lack of any CEL is what really gets me....

Yeah, the lack of any CEL is what really gets me. I thought the diagnostics were supposed to complain if any of the sensors was out of range.

I tested the TDC sensor with an ohmmeter (as...

Forum: General Maintenance and Repair

05-27-2007, 05:36 PM

Replies: 54

Civic VX miss under load

Views: 16,282

Posted By oh95vx

Swapping out the ECU didn't help. She still...

Swapping out the ECU didn't help.

She still runs lousy. The timing still retards briefly when I open the throttle, then returns to 16 BTC. No apparent advance with increasing rpm.

Haven't...

Forum: General Maintenance and Repair

05-27-2007, 04:23 AM

Replies: 54

Civic VX miss under load

Views: 16,282

Posted By oh95vx

I did check the resistance of the TDC sensor - it...

I did check the resistance of the TDC sensor - it was within the range in the manual, though as you say that's not definitive. Flaky grounds is an intriguing possibility I hadn't thought of.

I...

Forum: General Maintenance and Repair

05-26-2007, 08:05 PM

Replies: 54

Civic VX miss under load

Views: 16,282

Posted By oh95vx

Thanks a million times! I really appreciate your...

Thanks a million times! I really appreciate your dragging out the timing light. It helps a LOT, confirming that what I'm seeing here is NOT normal.

My poor girl's timing RETARDS as I blip the...

Forum: General Maintenance and Repair

05-26-2007, 02:50 PM

Replies: 54

Civic VX miss under load

Views: 16,282

Posted By oh95vx

Usedgo, I really like your spark tester. I'm...

Usedgo, I really like your spark tester. I'm going to make one of those up.

I don't think this is a case of a bad cylinder. I know that "loping" effect, and this isn't it. It misfires on all of...

Forum: General Maintenance and Repair

05-19-2007, 12:44 PM

Replies: 54

Civic VX miss under load

Views: 16,282

Posted By oh95vx

Many thanks for the link on the igniter (ICM). ...

Many thanks for the link on the igniter (ICM). That's about what I'd expected though it has a bit more intelligence than I thought in regulating dwell. (In the old days we adjusted dwell by...

Forum: General Maintenance and Repair

05-19-2007, 11:20 AM

Replies: 54

Civic VX miss under load

Views: 16,282

Posted By oh95vx

I checked the CKP, CYP and TDC sensors in the...

I checked the CKP, CYP and TDC sensors in the distributor by the Haynes method. They're all within the specified resistance range.

The TPS tests good.

I've changed out the MAP sensor.
...

Forum: General Maintenance and Repair

05-18-2007, 07:03 PM

Replies: 54

Civic VX miss under load

Views: 16,282

Posted By oh95vx

Well, this is weird. I think my timing is...

Well, this is weird. I think my timing is backwards.

Tell me whether I'm crazy.

As far back as I can remember, gasoline engines have always had automatic spark advance. In the '60s and...

Forum: General Maintenance and Repair

05-17-2007, 07:44 PM

Replies: 54

Civic VX miss under load

Views: 16,282

Posted By oh95vx

Haven't had time to do anything on the car this...

Haven't had time to do anything on the car this week, but I've been wondering about the cat too. Still, I'd expect a constipated cat to make her run lousy even when cold, and she runs OK when first...

Forum: General Maintenance and Repair

05-13-2007, 02:11 PM

Replies: 54

Civic VX miss under load

Views: 16,282

Posted By oh95vx

Thanks for the ideas. I have the Helms on pdf,...

Thanks for the ideas. I have the Helms on pdf, but its troubleshooting seems to only deal with problems that set CEL codes. That's never yet happened! On board diagnostics don't seem to be of much...

Forum: General Maintenance and Repair

05-13-2007, 12:56 PM

Replies: 54

Civic VX miss under load

Views: 16,282

Posted By oh95vx

> Does that thing have an EGR valve? It...

> Does that thing have an EGR valve?

It does. I pulled the vacuum hose off the EGR and plugged it to see if that made any difference. It didn't. I suppose that's not 100% definitive, though,...

Forum: General Maintenance and Repair

05-11-2007, 03:14 PM

Replies: 54

Civic VX miss under load

Views: 16,282

Posted By oh95vx

Cap and rotor are new. "Could also be the...

Cap and rotor are new.

"Could also be the distributor" - Hmmm. The ICM and coil are also new, about the only thing left in the distributor is the bearing, right? Or is there something else? ...

Forum: General Maintenance and Repair

05-11-2007, 01:20 PM

Replies: 54

Civic VX miss under load

Views: 16,282

Posted By oh95vx

Civic VX miss under load

I'm back again with more VX problems - sorry to say.

Right after I changed the L1H1 oxygen sensor about 6 weeks ago, she ran great - for a while. A couple weeks ago, I started to feel a bit of...

Showing results 1 to 15 of 15

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