I cut off catalytic converter on my gxp now car won't start

Asked by Jun 12, 2016 at 02:58 AM about the 2005 Pontiac Grand Prix GXP

Question type: Maintenance & Repair

3 Answers

105

Its because u need the back pressure they give off

1 of 1 people found this helpful.
22,685

So, see what happens? Who did the cuttin'? I don't think it is pressure, but there is an oxygen sensor on the CC- maybe disconnecting that has something to do with it? idk, sounds weird to me- doesn't make sense, really-

4,055

I agree. I don't think back pressure has anything to do with it. If they eliminated a sensor that could certainly do it. Look underneath. Maybe the sensor is still there but got disconnected during the catalytic converter removal.

Your Answer

Add photo

Related Questions

Grand Prix

Looking for a Used Grand Prix in your area?

CarGurus has 2,828 nationwide Grand Prix listings starting at $1,991.

ZIP:

Search Pontiac Grand Prix Questions

Pontiac Grand Prix Experts

#1 Js08016
Js08016
Reputation 4,330
#2 Tom Demyan
Tom Demyan
Reputation 2,940
#3 munron
munron
Reputation 2,280
View All

Related Models For Sale

Used Chevrolet Impala
601 Great Deals out of 35,697 listings starting at $899
Used Dodge Charger
530 Great Deals out of 28,886 listings starting at $2,500
Used Pontiac Bonneville
5 Great Deals out of 535 listings starting at $1,799
Used Ford Mustang
738 Great Deals out of 44,989 listings starting at $1,500
Used Pontiac G6
79 Great Deals out of 4,115 listings starting at $1,975
Used Chevrolet Monte Carlo
12 Great Deals out of 1,413 listings starting at $995
Used Pontiac Grand Am
1,137 listings starting at $1,000
Used Chevrolet Malibu
1,200 Great Deals out of 79,687 listings starting at $2,500
Used Pontiac GTO
7 Great Deals out of 471 listings starting at $6,950
Used Nissan Maxima
339 Great Deals out of 24,536 listings starting at $1,999
Used Chrysler 300
397 Great Deals out of 18,284 listings starting at $1,000

Used Cars For Sale

2008 Pontiac Grand Prix GXP For Sale
40 listings starting at $4,699
2007 Pontiac Grand Prix GXP For Sale
22 listings starting at $5,499
2006 Pontiac Grand Prix GXP For Sale
4 Great Deals out of 53 listings starting at $4,800
2005 Pontiac Grand Prix GXP For Sale
13 listings starting at $3,499

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use.