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About 1 minute after I started the engine today I pulled away in second gear at 1/2 throttle and like 1700 rpm. The engine started to miss and run so I eased of the throttle and it ran better. This repeated itself for a minute or so but the the problem went away. It felt like a moped with a too big carb on it and more like a lack of fuel problem (or too much air) and when it cleared I didn't know what to make of it - perhaps an intake leak that sealed when the engine started to warm up?
The car ran great for like 30 km but on the final stretch home it started to miss again and worse this time. It runs smooth (no vibrations, at least no more than usual) but when in idle and trying to rev it it almost dies, despite steady idle rpm. I popped the hood and the plug wires weren't sparking in the dark. I pulled all plug wires, one by one, and the only time I didn't feel a change was with no1 cyl although it is hard to tell. All four wires were firing. The problem is coming and going like at the flick of a switch so it seems more like an electrical problem (although it feels like it's lacking fuel). Can a sparkplug "come and go"?. A quick inspections of the engine bay didn't reveal anything obvious.
I'll pull the plugs tomorrow and see what they say. I'm hoping that it is something simple...
1995 Riviera blue 968CS with LSD, custom LEDA coilovers with t-bar delete, S4 brakes, RS Barn braided lines, Tarett sways, Racers Edge bushings everywhere, Rack Tack, Design 1 braces and short shift kit, air box mod, RS Barn stage 1 chip, RS Barn cat back, RUF BTR2 wheels with Toyo R888, Deutsch Nine TRS version 2 rear wing (carbon fiber), AIR repop splitter (carbon fiber), brake cooling intakes (carbon fiber), Sparco seats and belts, OMP steering wheel and a lot of other little things that I can't recall at the moment...
(This post was last modified: 08-16-2009, 05:30 PM by
firefish.)
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<!--quoteo(post=77993:date=Aug 17 2009, 02:02 AM:name=flash)-->QUOTE (flash @ Aug 17 2009, 02:02 AM)
<{POST_SNAPBACK}><!--quotec-->well, seems i took care of the MAF issue, but still having hall sender problems - i redid the connections and removed the bad section - no good
the upside is that the idle and off idle are better
i'll dive back in tomorrow<!--QuoteEnd--><!--QuoteEEnd-->
Thanks. I'll start with pilling the plugs and see what they have to say. I'll also check for leaks and bad connectors. Perhaps I'll try finding a shop with a hammer to see if that'll help me locate the problem.
1995 Riviera blue 968CS with LSD, custom LEDA coilovers with t-bar delete, S4 brakes, RS Barn braided lines, Tarett sways, Racers Edge bushings everywhere, Rack Tack, Design 1 braces and short shift kit, air box mod, RS Barn stage 1 chip, RS Barn cat back, RUF BTR2 wheels with Toyo R888, Deutsch Nine TRS version 2 rear wing (carbon fiber), AIR repop splitter (carbon fiber), brake cooling intakes (carbon fiber), Sparco seats and belts, OMP steering wheel and a lot of other little things that I can't recall at the moment...
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Problem solved! It would seem that the car (like many of my cars in the passed) had caught something commonly known as SO - Stupid Owner. When pulling plug wires I noticed moisture in the no1 spark plug cap (do you say cap?), must have gotten there when I cleaned the engine a week ago despite me being careful. When pulling connector at MAF there was the distinct smell of Air Sensor Clean and also a few droplets (despite letting it dry for like one hour, I did really soak it though when I cleaned it). I also checked all/pulled all connectors that I could find but they were all ok.
In addition to this I found out that the plug wires needs to be replaced and that rotor and cap are both showing the worst wear I have ever seen (!). Neither of these was the culprit this time. Parts are ordered together with a new fuel filter as it is only a matter of time before they cause trouble.
1995 Riviera blue 968CS with LSD, custom LEDA coilovers with t-bar delete, S4 brakes, RS Barn braided lines, Tarett sways, Racers Edge bushings everywhere, Rack Tack, Design 1 braces and short shift kit, air box mod, RS Barn stage 1 chip, RS Barn cat back, RUF BTR2 wheels with Toyo R888, Deutsch Nine TRS version 2 rear wing (carbon fiber), AIR repop splitter (carbon fiber), brake cooling intakes (carbon fiber), Sparco seats and belts, OMP steering wheel and a lot of other little things that I can't recall at the moment...
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That's great news.
Seeing as how you discovered the problem and repaired it yourself, SO now stands for Smart owner [img]style_emoticons/<#EMO_DIR#>/wink.gif[/img] .
I love my 968 for what it is & don't hate it for what it isn't!
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<!--quoteo(post=78032:date=Aug 17 2009, 02:36 PM:name=rhudeboye)-->QUOTE (rhudeboye @ Aug 17 2009, 02:36 PM)
<{POST_SNAPBACK}><!--quotec-->That's great news.
Seeing as how you discovered the problem and repaired it yourself, SO now stands for Smart owner [img]style_emoticons/<#EMO_DIR#>/wink.gif[/img] .<!--QuoteEnd--><!--QuoteEEnd-->
Well, now that you mention it... [img]style_emoticons/<#EMO_DIR#>/laugh.gif[/img]
1995 Riviera blue 968CS with LSD, custom LEDA coilovers with t-bar delete, S4 brakes, RS Barn braided lines, Tarett sways, Racers Edge bushings everywhere, Rack Tack, Design 1 braces and short shift kit, air box mod, RS Barn stage 1 chip, RS Barn cat back, RUF BTR2 wheels with Toyo R888, Deutsch Nine TRS version 2 rear wing (carbon fiber), AIR repop splitter (carbon fiber), brake cooling intakes (carbon fiber), Sparco seats and belts, OMP steering wheel and a lot of other little things that I can't recall at the moment...
