new opti spark installed, new plugs and wires, flow chart on fuel working properly, and all injectors firing. misses on acceleration, popping.
Apr 14, 2015 at 8:48 AM
misfire, random, changes cylinders and banks
TRAVIS1922
- MEMBER
- 2 POSTS
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make sure your ignition is set up correctly and wires going to right cylinders. and check coil. was it doing I t prior to the work that you did? it may be a basic engine problem. also check for a vacuum leak as well and check fuel pressure with a gauge auto parts rent it.
Apr 14, 2015 at 8:57 AM
Yes it was doing same thing
Apr 14, 2015 at 9:02 AM
then it wasn't the parts you changed to correct it. if it had a misfire code like 300-308 those are very hard to diagnose and apro should do it because it can be any sensor causing the problem. your fuel pressure should be 41-47psi key on engine off test that , vacuum leaks then compression
Apr 14, 2015 at 9:29 AM
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