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Registered
Join Date: Oct 2004
Location: Chicago, IL
Posts: 2
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1988 Carerra running problems
Okay...this is kind of a weird problem. I have an '88 3.2L and everytime it gets wet, it runs horribly (e.g. acts like there is no timing, breaks up, hesitates, bucks, ect.). Also, at around 2400-2800rpm, the car does the same thing (even when not wet) Now, my first fix was to replace the cap, rotor, wires, and plugs...this did nothing. Then I tuned the a/f mixture...no change...has anyone seen this problem before...and if so what are other possible causes...I've heard something about the AFM being out-of wack...but I don't think it would get worse in the rain in that case...one other thing...i have a DME chip from Steve Wong, and I tried w/ that chip and the stock chip with no avail. So if anyone has any clue what could be the cause please let me know....thanks!
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10-16-2004, 09:24 AM
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How did you tune the a/f?
Replace DME relay, Check grounds at the intake #1 manifold. Not sure about the 88, but there was an update to the Head Temp sensor when this corrodes it sent incorrect signals to the DME computer. Check intake gaskets for leaks. Is your O2 connected? Idle speed regulator working? When it is running, and idling it should be pulsing. I am sure there are a few other things to check, I just forget right now. Good luck.
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Nick '85 Carrera |
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10-16-2004, 10:11 AM
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Check distributor multiplug for water ingress or corrosion.
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1984 3.2 Carrera Impact Bumpers on track: http://www.youtube.com/watch?v=C4qbFNkdD2o |
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10-16-2004, 10:16 AM
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Senior Member
Join Date: Jun 2000
Location: N. Phoenix AZ USA
Posts: 28,943
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Has the cylinder head temp sensor been updated to the "two wire" version? My 85 had the same symptoms until I upgraded the cht sensor.
JoeA
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2013 Jag XF, 2002 Dodge Ram 2500 Cummins (the workhorse), 1992 Jaguar XJ S-3 V-12 VDP (one of only 100 examples made), 1969 Jaguar XJ (been in the family since new), 1985 911 Targa backdated to 1973 RS specs with a 3.6 shoehorned in the back, 1959 Austin Healey Sprite (former SCCA H-Prod), 1995 BMW R1100RSL, 1971 & '72 BMW R75/5 "Toaster," Ural Tourist w/sidecar, 1949 Aeronca Sedan / QB |
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10-16-2004, 10:44 AM
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Join Date: Dec 1999
Location: Novato, CA
Posts: 4,740
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Your 02 sensor might be shorting out when wet. Try wrapping it in heavy foil and see if that helps.
Cheers, Joe |
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10-16-2004, 11:18 AM
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Join Date: Nov 2000
Location: Dallas
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I had the same prob on my 88. I replaced the plugs, wires, cap and rotor and it went away. I did not want to replace them one at a time to find out which one was the problem so i don't know which fixed it but it went away for good.
Good Luck
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Buck '88 Coupe, '87 Cab, '88 535i sold, '19 GLC 300 DD Warren Hall, gone but not forgotten |
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10-16-2004, 11:32 AM
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Join Date: Mar 2001
Location: Marysville Wa.
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pop the cap next time it gets wet and see if it's lined with water. typical problem on 3.2s.
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10-16-2004, 01:29 PM
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Location: Novato, CA
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Hint: You might want to seal the rim of your distibutor cap with bead of Ultra Gray sealant before setting it on the distributor to prevent water from getting inside in the future.
Joe |
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10-16-2004, 02:45 PM
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Location: Chicago, IL
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Thank all of you for your replies!!! I will try all of these things on Monday, and let you know how it goes....thanks again!
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10-17-2004, 08:09 AM
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Porsche
1984 Porsche 911 3.2 Carrera 3.2
