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View Full Version : 1979 honda accord misfires under load


colonius123
Jun 9, 2009, 07:06 AM
It misfires under load buthe misfiring is erratic idles relatively smoothly. The misfires are erratic but not extremely severe and the previous owner suggested carby (as I can see slight weepage) BUT it smacks more of vacuum leaks if not coil or condenser breakdown but don't know how to test for either of these (if it is in fact either of them)

TxGreaseMonkey
Jun 9, 2009, 07:24 AM
Replace the ICM and coil:

https://www.askmehelpdesk.com/cars-trucks/faq-how-troubleshoot-repair-maintain-hondas-selected-other-vehicles-46563-4.html#post265896

colonius123
Jun 9, 2009, 02:28 PM
Thanks for that Tex, sounds close to what I thought it would be and will do as you have instructed BUT BUT where's the flammin ICM on the Honda?
Sadly, I didn't even know they had such a thing on a Carby model. Shows how old I really am.
Thanks again matey.
Garry West. Perth, Western Australia

TxGreaseMonkey
Jun 9, 2009, 05:15 PM
Here's what it looks like:

AutoZone.com | Vehicle Selection | Year (http://www.autozone.com/autozone/catalog/parts/partsShelf.jsp?categoryDisplayName=Electrical+%26+ Lighting&fromType=parts&fromString=search&parentId=cat30065&currentPage=1&filterByKeyWord=ignition&isSearchByPartNumber=false&navValue=15700029&categoryNValue=15799999&fromWhere=&itemId=prod61183&displayName=Control+Module+-+Ignition&searchText=ignition)

If you have points and condenser, instead, I would replace them, along with the coil. Afterwards, check the dwell angle of the points and set the timing with a strobe light.

I would also install new NGK spark plugs, if they haven't been replaced in the last 2 years or 24,000 miles.

colonius123
Jun 11, 2009, 04:40 PM
Thanks Tx Greasemonkey I noticed the coil was new so I thought I must check the points as I should have, and as you suggested... Therein lay the problem. Thanks matey.

TxGreaseMonkey
Jun 11, 2009, 05:14 PM
Good job. I believe you own the oldest Civic that anyone has asked a question about on this site. I like that!

Thank$ for "everything."

colonius123
Jun 11, 2009, 05:53 PM
I'm ALSO AM a die hard, do-it-yourself, John 3:16 believing <><, Aussie DIY'er, with many years of experience working on my junky cars, my toyota 1981 4sp diesel truck/ute, know very little about small engines nor air conditioners, tolerate computers, and enjoy doing almost anything mechanical. <>< and its +61 404 236 506 or +61 8 92463897 if you ever need info on Aussie cars. All the best brother and keep the lamps filled with oil for the groom returns soon... I think.