Hi Jai, Until you go through every system in your DeLorean, you can expect problems to keep showing up. I bought my so-called daily driver with 8600 miles on it. That was about 3 years ago and it now has around 23K miles. Lucky for me, it had very little done to it by the previous owners. But then that came at the price of the car needing many of the systems gone through. Fortunately I have been able to drive it several weeks at a time before having to perform major repairs. What makes these cars so difficult do diagnose is that there may be many problems compounding each other. For example, a vacuum leak may make the engine run too lean. But then a fuel problem can make it run too rich. Both problems working against each other may make the car seem lean at some times but then rich other times but normally pretty much okay -- just lacking power. Fixing only one of these problems without the other may actually make the car run worse. I suggest going through the whole fuel system. Start by cleaning out the tank and making sure everything is in place -- the baffle (top & bottom), suction screen, suction hose, etc. Replace the fuel filter. Those should be replaced every year or 10K miles according to books written about Bosch fuel injection. Remove the cold start valve to see if it is dribbling. That would cause a rich running condition. Also pop out all the fuel injectors and put them in tiny jars. Jumper out the RPM relay (as per the Workshop manual -- you do have the sets of manuals, don't you?) and push on the air metering plate. Check the spray pattern of each injector. You should see an even cone spray pattern, and the volume from each injector should be within 10% of the others. And none of the them should be dribbling at rest. Invest in a good fuel pressure meter and hook it up as per the Workshop manual's instructions. This goes a long way in diagnosing problems. I don't recommend the NAPA fuel pressure gauge. I have one and it is a pain to hook up. Whoever designed it never had to use one on a DeLorean. A common problem on these cars is the electrical connections. Check every one in the engine compartment -- particularly the ones at the warm-up regulator, idle speed motor, frequency valve, connections at the firewall, etc. Check all the fuses in the relay compartment. Those tend to corrode and melt. If your car is normal then you should have a few melted ones already. > but you might want to try > www.DMCnews.com too. There's a lot of very helpful people there too. Yep, true. But that is IF the moderators will let your messages through and IF they will then let responses to your message through. At least here we won't delete your messages. BTW, can I interest you in a set of Inconel 718 trailing arm bolts? $46 + shipping. Walt Yahoo! Groups Sponsor <http://rd.yahoo.com/M=247865.3355058.4641699.1261774/D=egroupweb/S=170512 6215:HM/A=1482387/R=0/SIG=16nn5l2g9/*http://ads.x10.com/?bHlhaG9vaG0xLmRhd =1054874051%3eM=247865.3355058.4641699.1261774/D=egroupweb/S=1705126215:HM /A=1482387/R=1=1054874051%3eM=247865.3355058.4641699.1261774/D=egroupweb/S =1705126215:HM/A=1482387/R=2> <http://us.adserver.yahoo.com/l?M=247865.3355058.4641699.1261774/D=egroupm ail/S=:HM/A=1482387/rand=208786927> To unsubscribe from this group, send an email to: DMCForum-unsubscribe@xxxxxxxxxxxxxxx Your use of Yahoo! Groups is subject to the Yahoo! Terms of Service <http://docs.yahoo.com/info/terms/> .
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