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Topic Mice do not discriminate ... |
P1128 & P1130 codes They're back! Ed B - 7 years ago |
Re: P1128 & P1130 codes They're back! MarcW - 7 years ago |
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Ed B
It's been a while but codes P1128 7 P1130 are back on my 2000 Boxster S with 40k miles. Runs great.
Happened at Palmer Motorsports Park DE last weekend. (Oxygen sensing at enrichment limit, idle) . Shop manual says fault is air intake leak, fuel pressure supply too low or dirty injectors. I have found no exhaust or intake leaks using the carb cleaner test. Haven't checked fuel pressure or volume since i expect they would affect high RPM running, too.
Got some interesting data with the PST2.
Manual says air mass at diagnosis condition >35 kg/h. PST2 reads 26 kg/h
O2 sensor resistance bank 1 before CC 0 - 64 ohms (changes from 0 to 64 every few seconds)
" " " " " after " 64 ohms
" " " " 2 before CC 0 - 64 ohms (changes from 0 to 64 every few seconds)
" " " " " after " 128 ohms
Adaption Range 2 FRA Bank1 1.09
Have some other data that may or may not be relevant.
Comments, suggestions? Could one O2 sensor cause codes for both banks?
Thanks,
Ed B
Re: P1128 & P1130 codes They're back! Ed B - 7 years ago |
Re: P1128 & P1130 codes They're back! MarcW - 7 years ago |
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Ed B
Marc,
The oil filler cap was OK the previous time I had the codes. I didn't check it this time. will do. I can't confirm this, but the codes seem to appear after some track sessions when the engine is hot.
Ed
Re: P1128 & P1130 codes They're back! Ed B - 7 years ago |
Re: P1128 & P1130 codes They're back! CarreraLicious - 7 years ago |
Re: P1128 & P1130 codes They're back! MarcW - 7 years ago |
Re: P1128 & P1130 codes They're back! Ed B - 7 years ago |
Re: P1128 & P1130 codes They're back! Ed B - 7 years ago |
Re: P1128 & P1130 codes They're back! MarcW - 7 years ago |
Quote
Ed B
Marc,
I ran diagnostics again this morning with the PST 2. Referring to factory diagnosis manuals (Group O, part 1). For DME set points, some of the numbers I get don't agree too closely with the manual.
I'm looking at pages 24-D53 thru 24-D55 issued in 1998. My Boxster is a 2000 S. I have the supplements through #3, issued in 1999.
Is there a later supplement that covers the "S" and if there is , where can I get it?
Other data.
I checked the vacuum lines again, including the fuel pressure regulator and the ones to the sport muffler valves. The oil cap is tight and moving it and lifting it make no difference in the idle. The dip stick is tight, also. Removing the cap affects the idle.
I cleaned th MAF, too. I haven't checked the fuel pressure, yet. Probably this PM. Fuel pressure is more likely to affect high speed running than idle, but. I don't have a new cap for the port, but there is a check valve under it. It's probably a Porsche
CYA item or a profit center.
I've reset the codes and it runs fine. A lille burble in the exhaust, but that may be the sport muffler.
Ed B
Re: P1128 & P1130 codes They're back! Ed B - 7 years ago |
Re: P1128 & P1130 codes They're back! MarcW - 7 years ago |
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Ed B
I checked the oil filler tube in the trunk and didn't find any cracks., I did find evidence of mice though, and took approbate action. No damaged wires! I looked in the engine bay earlier, butI can check again.
The Pelican forum has a thread on these codes caused by the MAF unit. Since mine doesn't show codes often, I'll see what happens next.
Ed B
Re: P1128 & P1130 codes They're back! Ed B - 7 years ago |
Mice do not discriminate ... Pedro (Odessa, FL) - 7 years ago |
Re: Mice do not discriminate ... MarcW - 7 years ago |
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Pedro (Weston, FL)
... they will go after any year car!
I just had a 2013 Carrera 991 with extensive damage due to mice. Damage to the tune of $2650!
They really like the new cabin pre-filter cubby to build their nest which the make from all of the surrounding foam parts.
If you live in a place where there may be mice put some rodent-deterrent in the trunks and engine compartment.
Happy Bolstering,
Pedro
Re: Mice do not discriminate ... Ed B - 7 years ago |