Code 41 I have a 1984 Z28 has like a carbon knock also has a miss and spits back thru carb when at full throttle getting code 41 on obd . cant find a cam position sensor nor a electronic spark module any help would be appreciated. Thanks, Carlope |
Re: Code 41 No cam sensor , 41 should be for faulty or incorrect prom or bad ecm. |
Re: Code 41 Thanks |
Re: Code 41 is there anyway to test I just took ecm out from under pass side also how do you get prom out of ecm ? don't want to tear anything up Thanks again |
Re: Code 41 If you pull the prom to reseat it be careful the pins damage easily. You might want to look at the service number and look on eBay for a replacement ecm. There should be 3 letters on the service tag or on the chip. These letters identify the prom vehicle application engine size, transmission type. Other codes will work for the same application and if listed I can identify them if you need. No way I know to test the ecm and little support for the prom. |
Re: Code 41 Thanks Again see what I can find on e-bay. CJT is three letters on tag and chip. Service # 1226455 |
Re: Code 41 Found a few on ebay would need to know what 3 letter codes are compatible? Thanks for your help. |
Re: Code 41 Here is the reason for code 41: 41- no distributor signals to ecm, or faulty ignition module ( carbed models) There is someone else here that has been fighting this code for quite a while. Can't find his thread but IIRC he is from either Great Briton or Germany. I posted the troubleshooting of this code in his thread. The baro sensor plays an important role. The ECM uses it to know whether the engine is running or not. RBob. |
Re: Code 41 |
Re: Code 41 Great information rbob, sorry to lead you astray with ecm information different years different meaning of the codes. |
Re: Code 41 Thanks Guys give it another look |
Re: Code 41 had ignition module tested it said it was ok but going to replace anyway. The connector with capacitor that connect to module was pretty much toast looks like it got real hot the insulating cover fell into pieces. Had to order that part. Just to keep you informed. Thanks Again for the advice. Carl |
Re: Code 41 Got back together seem to be problem in a way the knock I have been hearing is coming from the distributer. will distributer pull out ok or do I need to know anything special and I have heard you have to disconnect a wire somewhere to reset timing since it does not use a vacuum advance. Thanks |
Re: Code 41
Originally Posted by carlope
(Post 6208851)
I have heard you have to disconnect a wire somewhere to reset timing since it does not use a vacuum advance. Thanks RBob. |
Re: Code 41 Thanks RBob Just hope it will pull out ok? |
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