hello, im back again!
i finally have the l28e powered 77 280z running but it has been sounding like its missing on a cylinder or two. upon further investigation i have found that #1 cylinder has not been firing. its really wierd because i have good spark and fuel injector is also good. i tested it before i replaced the one that i thought was frozen. if i have good spark and fuel then why dont i have combustion? the engine is rebuilt and has not even been broken in yet. i have not tested that cylinder for good compression (i dont have a compression tester) but on the compression stroke with the plug removed i get a big whoosh of air. i put an led to the pigtail and also can confirm that its getting a pulse. d'oh!?
marcus
#1 cylinder not firing
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Read the manual to see if your question is answered there before posting. Many users will not reply if the answer is already available in the manual.
If your question is about troubleshooting, configuration, or tuning, you MUST include your processor type (MS-I or MS-II) and code version in your post. If your question is about PCB assembly or modifications, you must also include the main board version number (1.01, 2.2 or 3.0). For tuning/troubleshooting questions, please attached a datalog and your MSQ file to your post.
If you have questions about MS1/Extra or MS2/Extra code configuration or tuning, please post them at www.msextra.com Such questions posted here will be moved to: a temporary MSextra sub-forum, where they will be removed after 7 days
The full forum rules are here: Forum Rules, be sure to read them all regularly.
Re: #1 cylinder not firing
this post is done. number 1 doesnt have any pressure and the rest have 70. i just rebuilt this engine too.......