Project Cars or Member’s Cars sub forum for the build threads so readers can follow the creation or re-creation of a high performance Caddy. Whether it is a CTS-V, a 1970 Eldorado, a Northstar powered Eldo, etc. , an organized way of finding and enjoying and learning from others who have the need to modify their rides for performance or racing.
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My 4.9 Seville idles high on start up, around 2,000rpm. It stays that way for about 3-4 min before settling down to around 800-1,000 rpm. Once the car is warmed up, I can shut it off and restart it and the car idles normally. I replaced the ISC with a spare one and did the idle learn procedure, and it does not seem to make any difference. I am showing codes E030 and E055.
Some possible things I am thinking about checking is the timing and TPS. The problem is I don't know how to check if the TPS is OK or not. Is there anything else I am missing?
I got this in my email from Cadillac. I was perusing the Lyriq and was surprised it is only offered in two exterior colors and two interior colors. Other options are still sparse as well but I guess more will be revealed when it comes closer to ordering.
I have a friend in his 80s with a 81 Eldorado Barritz his mechanic swapped out the computer loosing the memcal chips any chance you might know where I can help him find either the memcals or a salvage computer?
Good morning Mike. I've been searching in the forum about rich cold start. I have a 1993 Cadillac deville 4.9 v8. I've done maintenance. full tune up. Plugs, wires, cap and rotor. New EGR, and new PCV valve. Throttle body cleaned and air intakes (those were bad) checked the timing yesterday (at 24 degrees) don't know why but I'll bring it down. Cold start rough... too much fuel. Runs perfect after warm. Any suggestions about the rich cold start? Any info it would be much appreciated. thank you.
I live in Terre Haute, IN. Do you know much about 4.5 Liter engine? I have a 1988 Fleetwood (FWD)... I am needing to find someone to do some work on it.
firstname.lastname@example.org Let me know if you can help.