'98 check engine light is on, but don't know codes or method
- Yoshicoby
- SLE Member

- Posts: 72
- Joined: Thu Aug 28, 2008 10:28 pm
- Year and Trim: 1998 Bonneville SLE
- Location: Maplewood, MO
'98 check engine light is on, but don't know codes or method
My check engine light is still on as of this afternoon, and I don't know how to diagnose it... I couldn't find the info on here for a 98 (or close to). The car is running fine, all fluids are full, and it appears all my vacuum lines are connected properly. I disconnected the battery for ten minutes and its still on. Does anyone have any suggestions and/or the method and codes for "counting the blinking light". I thought I had this info before, but must have lost it. Feelin kinda dumb about it too... Thanks.
- harofreak00
- Administrator

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- Year and Trim: 2004 GXP - plus a handful of other Bonnevilles
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Re: '98 check engine light is on, but don't know codes or method
The "blinking codes" is only for 93 or earlier. You need a OBD2 scanner in order to read the codes.
Autozone or similiar will read the codes for free (and try to sell you new parts)
Report back here after you have the code.
Autozone or similiar will read the codes for free (and try to sell you new parts)
Report back here after you have the code.
Andrew - owner/operator of Bonnevilles Unlimited

2004 Bonneville GXP | 60k | White Gold Tricoat | custom built supercharged 3800 hot rod | garage queen
1997 Corvette | 57k | Silver Metallic | Z06 wheels | Date-night Hauler/Parts runner
2014 Town & Country Limited | Cashmere Pearl | 115k | Family Hauler
2002 Ram 1500 Quad Cab Sport | Black| 280k | Official Bonneville Hauler

2004 Bonneville GXP | 60k | White Gold Tricoat | custom built supercharged 3800 hot rod | garage queen
1997 Corvette | 57k | Silver Metallic | Z06 wheels | Date-night Hauler/Parts runner
2014 Town & Country Limited | Cashmere Pearl | 115k | Family Hauler
2002 Ram 1500 Quad Cab Sport | Black| 280k | Official Bonneville Hauler
- Yoshicoby
- SLE Member

- Posts: 72
- Joined: Thu Aug 28, 2008 10:28 pm
- Year and Trim: 1998 Bonneville SLE
- Location: Maplewood, MO
Re: '98 check engine light is on, but don't know codes or method
okay, guy at auto zone said P0442 came up. he said probably gas cap. I filled my tank, screwed gas cap about 5-6 clicks, and check engine light still on. only drove it about a mile though.
-
bonnevillain
- Retired Site Developer

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- Location: Minnesota
Re: '98 check engine light is on, but don't know codes or method
try cleaning the surface where the gas cap contacts the metal. is it rusty at all?
- Yoshicoby
- SLE Member

- Posts: 72
- Joined: Thu Aug 28, 2008 10:28 pm
- Year and Trim: 1998 Bonneville SLE
- Location: Maplewood, MO
Re: '98 check engine light is on, but don't know codes or method
no rust. and the gas cap feels like its sealing really well.

