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Old 11-21-2012, 09:51 PM
MrBones102's Avatar
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Join Date: May 2012
Location: New Orleans, LA
Posts: 15
190e 2.6 Misfire

So I recently acquired an 88' 190e 2.6 Auto on the cheap! (steal really)
Car has only 100k and is quite clean.


Sat up for about a year with no fuel.
Owner had a stall issue, drilled holes in cat to fix. (Could be cause of the issue)
I've done some more tuning up (cap/rotor) and checked plugs (all nice and clean!)

The car still has a misfire on cylinder #4. Sometimes, the idle is fine, other times its rough. The odd thing is, even though its quite rough getting it going, once up to speed the fuel consumption meter relaxes back to nothing and you can hear/feel the engine even out like its firing correctly. But the second you go to accel any more, it misses and the fuel meter dips drastically.

Changed wire to no avail.
Would the clogged cat (or possibly precats) cause a misfire on just one cylinder?

Going to do some checks for vacuum leaks and other various CIS related things tomorrow, but wanted to bounce the problem off you guys as well.

Any help is appreciated!
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