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A nice summer day in Monterey California with my 550.[ATTACH]
I agree. I never pulled the plugs when the car would not start as I don't have a good tool for removing the spark plug cap. The technician did...
By the way I did complete a 280 mile rally today with several stops and some serious backroad hustling and the car restarted every time perfectly...
Yes, but we verified we were getting spark, so I still think it was the coolant sensor for the ECU. Maybe the connection on the sensor or maybe...
It is my understanding that there are three temperature sensors. One is for the in-car temp gage, one is for the AC controller and one is for the...
Final update on the intermittent hot start problem. I trailered the 550 to my technician and did a cold start which worked perfectly fine...
You had a starting issue with your 456 and received some helpful advice from the forum. Did you ever resolve the issue? If so could you please...
Thank you for the good wishes. Also, I have an appointment with a trusted technician on May 24. I would expect the car to be there for a week to...
Well, it's not the cam phase sensor as I have replaced that and I have also independently cooled it to no effect. Cheap easy thing to do and was...
This is an interesting question. I'm not sure how I could verify this, however, the noid light was quite bright and had a very short off time. As...
Yes, that is one of the first things I did, but forgot to mention it in my posts. Also in the no-start mode no matter how much I cool the car...
Sorry, I was a bit heavy-handed with my reply. I'm dealing with a lot of medical issues right now and I let my frustration overflow into this...
Thank you very much for the schematic. It will be very useful. Gary
Qavion Thank you for your input. Yes, I'm aware that there are two sensors and only one feeds the ECUs. I did not have the chart information that...
FatBillyBob and Scowman I have confirmed fuel pressure with a gauge attached to the fuel rail, both individually. Measured 3.5 BAR when cranking...
Qavion Thank you for the information. I cannot read the banks individually. I read the codes with an OBDII code reader and phone app. I'm...
OK I replicated the no-start problem starting from cold and running for about a half hour. I then turned the engine off and tried to restart...
Gentlemen, thank you for your comments. With regard to the relays, Since most of the relays are of the same type I have moved them around from...
I could use a little help. My 1999 550 has developed an intermittent not start issue If I start the car from an overnight rest, it starts right...
