Help needed
#1
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2004 E55
Help needed
Ok I have a 2004 e55 I fitted a set of eurocharge Long tube headers about a 1000ks ago that leaked due to a bad modification job to make them fit a R/H drive but the car still ran solid about 4 weeks ago I had the alternator replaced and done the supercharger belt at the same time about 2 days after the work was done the car developed a misfire I put it down to the leak in the headers as the leak was getting worse so I ordered a set of kleemans which fitted up perfectly and with no leaks but i still have misfire and the check engine light on. I took the car to a tuning shop and its showing misfire codes on the R/H bank if we clear the codes the car runs fine until it gets warm and also seem to run smooth in the upper rev range we done a compression test and the R/H bank is only producing 40psi on all 4 cylinders and the left 175 any help or advice would be appreciated
#2
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Something must be wrong with your compression test on the right bank, if you only had 40 psi in each cylinder your car wouldn't run.
#5
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The only thing I can think of that would cause an entire bank to have extremely low but consistent compression would be a failed camshaft phaser. I wouldn't expect it to be that low, and would expect the default failure position to be 0' but I am not that familiar with the technical specs of the phasers to know the default position or the advance/retard range. It would definitely code for this.
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2004 E55
Thanks for the replies after speaking to the guy working on the car they have only tested number 1&4 and they both read 40psi I asked them to do the test again and also do a leak test it’s the Weekend here now so will have to wait until Monday thanks
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2004 E55
OK confused tested compression again left bank 175psi right bank 40psi done leak test less than 4% reset computer runs on all 8 cylinders until hot then misfire returns