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#16
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Quote:
Regards, Eric
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89 300E "Benzer1" 15.924 Uncorrected 93 400E "Benzer3" 14.200 U.C. 95 E420 "Benzer4" 92 300E "Benzer5" 16.299 U.C. Future turbo CNG 87 300D "Benzer7" 87 300D "Benzer8" 87 300D "Benzer9" 87 300D/70 AMC Javelin "Sidewinder-Benzer" 87 300TD "Benzer11" 06 E320 CDI "Benzer12" 05 E320 CDI "Benzer12A" 71 AMC Javelin AMX 401 "Sidewinder" 74 AMC Hornet 401 "C.K.10" 13.63 U.C. 74 Bricklin SV1 "Presto" AMC 360 pwrd. |
#17
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FYI, you can unplug the ETA with the engine running. I did this on my 400E (non-ASR). The engine hunted around for an idle, but it did not stall. I suppose you could rule out the electrical function of the ETA as the cause of a misfire if you unplugged it while it was idling.
You can unplug it at the end near the module box. It has a spring-loaded canon plug that was engineered by Rube Goldberg.
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1993 400E, 256,000 miles (totaled) 1994 E420, 200,000+ miles 1995 E420, 201,000 miles Last edited by emerydc8; 07-10-2010 at 06:22 AM. |
#18
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Side note that may or may not be related...
When I'm using cruise control...it isn't solid steady...it's as if the car is constantly decelerating and accelerating rather than having a nice smooth throttle.....relation to the ETA? From what I understand this unit controls the cruise control alongside the computer......
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1995 E420 1998 SL500 Sport 2009 E350 Sport 1995 S500 Coupe 1992 500 SEL |
#19
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Yes, that may be a smoking gun.
Don't forget what I said about the MAS in my prior post. Regards, Eric
__________________
89 300E "Benzer1" 15.924 Uncorrected 93 400E "Benzer3" 14.200 U.C. 95 E420 "Benzer4" 92 300E "Benzer5" 16.299 U.C. Future turbo CNG 87 300D "Benzer7" 87 300D "Benzer8" 87 300D "Benzer9" 87 300D/70 AMC Javelin "Sidewinder-Benzer" 87 300TD "Benzer11" 06 E320 CDI "Benzer12" 05 E320 CDI "Benzer12A" 71 AMC Javelin AMX 401 "Sidewinder" 74 AMC Hornet 401 "C.K.10" 13.63 U.C. 74 Bricklin SV1 "Presto" AMC 360 pwrd. |
#20
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A bad ETA cable can definitely affect your cruise control. I discovered this by accident.
O2 sensor electronics testing
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1993 400E, 256,000 miles (totaled) 1994 E420, 200,000+ miles 1995 E420, 201,000 miles |
#21
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Slow start....more smoking guns?!
One more note....started the car after work tonight and it was way slower to start than usual. Car was sitting for a good 12 hours so it wasn't a hot start but the turnover time is between 2-3 seconds before firing and tonight it was more like 6-7. Relation to the ETA??
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1995 E420 1998 SL500 Sport 2009 E350 Sport 1995 S500 Coupe 1992 500 SEL |
#22
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That sounds like the pump is losing it's prime. does it do that 1-2 hours after shutting off?
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RIP: 80 300SD RIP: 79 450SEL 2002 E430 4matic (212,000km) 2002 ML500 'sport' ____________________________ FACEBOOK: PANZER450 |
#23
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Yeah! I'll check the fuel pumps and the shop this weekend hopefully so I can have a closer look. Either way...the rail could either be losing its pressure during sitting/fuel pump prime problem...or could there be any relation to the ETA on this one?
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1995 E420 1998 SL500 Sport 2009 E350 Sport 1995 S500 Coupe 1992 500 SEL |
#24
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Fuel pressure bleed down fixed (blown out upper injector seal on the #1 cylinder). New ETA installed with no change in idle symptoms. I'm seriously running out of options here guys!! Next change is the alternator in hopes there MIGHT be a charging systems problem (long shot). The second option is that the seals within the intake manifold are starting to fail resulting in un-metered air getting into the engine causing all sorts of idle problems. Third on the list, maybe a longer shot are the camshaft position sensors. I'm shooting once again in the dark. Any insights welcome!!!
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1995 E420 1998 SL500 Sport 2009 E350 Sport 1995 S500 Coupe 1992 500 SEL |
#25
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i think i would rule out the egr as any possible issue,all that would do is cause a high or low idle,if the plunger had a leak it would be a vacum leak and it would cause a high or erratic idle,if the carbon was clogging it,it would bog down,it doesnt sound like thats your issue,your describing it more like a misfire between cylinders,possible defective coil pack,check your coil,then check your rotor for wear,or exxcesive black spotts or carbon build up,also inspect the inside of the dist cap,if its all black and white its from excessive wear and its arcing out the electrodes are not giving you a fulkl spark to ignite the fuel in the cylinder,you may want to replace your cap and rotor and also replace your ignition coil.this is just preventitive maintenance.
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#26
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I dunno....the EGR can do funny things to an engine, if it does have a leak to atmosphere, then it's a vac leak, but it can also leak exhaust gas into the intake tract when it's not supposed to, essentially reducing available vacuum or worse, slightly pressurizing the intake
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RIP: 80 300SD RIP: 79 450SEL 2002 E430 4matic (212,000km) 2002 ML500 'sport' ____________________________ FACEBOOK: PANZER450 |
#27
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Doesn't an EGR problem throw the CEL???
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1995 E420 1998 SL500 Sport 2009 E350 Sport 1995 S500 Coupe 1992 500 SEL |
#28
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New Alternator
Another update...new Alternator installed today with no change in idle issue (or ABS/SRS light quirks...previous posts) Here's another note...the secondary harness controlling the alternator/starter is completely shot to hell. There was a pile of insulation on the floor after the job. Potential problems?? (Harness will be ordered in the morning)
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1995 E420 1998 SL500 Sport 2009 E350 Sport 1995 S500 Coupe 1992 500 SEL |
#29
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I wouldn't expect the lower harness to cause engine problems. The starter and alternator wires are very heavy duty (see the pictures of my old harness at post #11 E420 Oil Quantity Indicator).
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1993 400E, 256,000 miles (totaled) 1994 E420, 200,000+ miles 1995 E420, 201,000 miles |
#30
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Ignition Coils and Lower Harness
Just finished replacing the ignition coils and the lower engine harness with no change in symptoms. Anyone have anything else to add to this post? I've exhausted all of my ideas except for MAYBE a manifold leak (as described above). Keep me posted!
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1995 E420 1998 SL500 Sport 2009 E350 Sport 1995 S500 Coupe 1992 500 SEL |
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