Suzuki Forums banner

1 - 20 of 21 Posts

·
Registered
Joined
·
35 Posts
Discussion Starter #1 (Edited)
Engine misifres. Even tho spark plugs, and wires are changed.
Went to mechanic, he says i need to change my Catalytic converter.
Has anyone done it? And how much does it cost?
the code is: 0420 Catalyst system efficiency below threshold bank 1.


Another small problems:
My seat broke, YEA the seat, Is it difficult to install it??? Like completely to put the brand new one.
And The airbag sign went on. What might cause the problem?
Thank you. Very much.

This is the only site that i find very useful information about suzuki.

Thank x a lot.
 

·
Registered
Joined
·
494 Posts
i think your the first bad cat on here thati've read about... however seeing how much space there is next to the CAT and how easy it is to put in a test pipe. If you can fine the replacment cat, unbolt the exhuast heatshield ( a can of WD40 will almost be necessary, then you will see the top bolts for the CAT, undo these. Then go down under the car and you'll be looking at the bottom of the CAT and undo the bolts. I had to hit mine out with a love tap from a hammer but after than wedge the new one in, bolt it back up and then get someone to erase the code from your ECM. Easy peezy lemon squeezy,

As for the Seat, if you have a new one, slide the old one all the way forward and undo the rear bolts (one on each corner, then slide it all the way back and undo the front two bolts. the seat will want to fall backwards, let it. Then undo the Two wires (one for the seat belt and the other for the airbag) now you can remove the seat. From here i put a carbon seat in but i imagine the principle is the same. Looking at the bottom of the seat you should be able to transfer the seat rails over to the new seat with the OEM hardware. Then reverse the process for reinstallation. (My friend says you should disconnect the battery to prevent the air bag going off but i never have any problems.

As for the air bag light coming on, that's a problem that plagues these cars. I usually squirt some electrical connector cleaner from Walmart in to the plugs before reconnecting them and i rarely have issue.

Hope that helps.
 

·
Registered
Joined
·
35 Posts
Discussion Starter #3
So i went to a delaer and he says cat coverter costs 1250. 1250?????

THen i called to suzuki they say if you live in NJ ur warranty on emission till 80000 or 5 years. IF you live in NY the warranty is 50000 miles or 3 years. Since my car is registered in NJ it should nt be a problem. Well see hwo it goes when i go to the delaer next week.
 

·
Registered
Joined
·
1,360 Posts
I also haven't heard of the cat going bad so fast, especially without any major mods. The OEM cats are ridiculously expensive....its like that for most new cars. I kind of doubt you will find a used cat on car-part.com or at any other wreckers (there is a reason they don't sell used cats, but I can't seem to remember it right now lol).
 

·
Registered
Joined
·
3,098 Posts
i might be wrong but i believe the cat should be covered by warenty. i think suzuki extended the exhaust warenty but i might be wrong. its also legal to change the cat to an aftermarket equivelent as long as the original cat has gone bad, i think this is true for all 50 states. just get youself a good aftermarket cat. any shop can replace it and it should only cost,for a good one, a couple of hundred dollars.
 

·
Registered
Joined
·
35 Posts
Discussion Starter #9
Yea i was told that used cats are illegal to sell. anyways hope it will be covered under warranty.

7even this question since you live in NY, does your radio have good reception on 87.7 FM???

Cause mine always with some statics. I was wondering is it my radio or antenna, or most renos are like this???

Thanx
 

·
Registered
Joined
·
235 Posts
Catalytic converter failure in the Forenza/Reno isn't exactly common, but does happen from time to time. Check with your dealership to see if it's still covered by the Federal Emissions warranty.
Something to think about, however: Fix the misfire before the new cat is installed. The misfiring is most likely what killed the cat in the first place, and if you just put in a new one, it'll be killed too.
Common things that cause the Forenza/Reno to misfire: Ignition coil failure, fuel injectors dirty, sometimes spark plugs failing will cause a misfire. There are others, but those are the big ones that come to mind.
For the ignition coil, there isn't a whole lot of diagnosis you can do other than swapping on a known good one. For the fuel injectors you can pull the fuel rail off the motor and clean the tips of them with throttle body cleaner spray. That can make a huge difference.
~Erik~
 

·
Registered
Joined
·
35 Posts
Discussion Starter #12
Well i tuned my car up like 10k miles ago. And Can the cAt cause the misfire????

Cause thats what my mechanic told me to switch cat first.
And this is the problem that caused the misfire.
 

·
Registered
Joined
·
235 Posts
no, the Catalytic converter cannot cause a misfire. If the cat has failed, the rear O2 sensor will simply respond more quickly, but shouldn't cause any actual further problems. The opposite is true, however, that misfiring will very quickly start to damage the catalyst...that's why when the check engine light is blinking you should turn the car off ASAP to aviod catalyst damage. I've actually seen a misfiring engine make the catalytic converter so hot it was glowing bright red. When that cat was replaced it looked like there had been a volcano inside it...it was totally toasted.
If the catalyst is already damaged to the point that the ECM has flagged a P0420 code, focus on the misfire before you get the cat replaced. If the dealer really wanted to be a jerk about it they could say that it's not covered by the warranty because the misfiring condition (if not covered by vehicle warranty) caused the failure, therefore not a "defect" per se...so get the misfiring fixed first.
If you have access to a scan tool that can read fuel trim levels, they can tell you a lot. If they're too high, like over +10-15%, take a look at cleaning those injectors and see if that cleans up the engine running...or at least brings the fuel trims down closer to 0% (ideal).
~Erik~
 

·
Registered
Joined
·
232 Posts
Yeah i agree with you Zstalker. I've got no cats in my car and no miss firing at all (even though my second o2 sensor doesnt like it (although i do have a complete piggy back system and blah blah blah, but even with the KINKY 421 header it wasnt ever a problem). I think the worst thing that a bad cat could do is smell like crap and cause your engine light to come on (shouldnt cause misfires at all)
 

·
Registered
Joined
·
8 Posts
zstalker,

What are the chances that the oxygen sensors are bad?

Anyway, I did do a scan and here are the results:

Date Created: 9/2/2009 11:07:52 AM


VIN: KL5JJ56Z26K249942
Year: 2006
Manufacturer: GM Daewoo Auto and Technology Company
Make: Suzuki
Model: Forenza
Engine Type: L4, 2.0L
Tranmission: Automatic
Trim Level: Base; Premium
License Plate: 616-HRR
Mileage: 95807


Solution(s): (Listed in order of most likely to least likely)

No solutions could be found.


=== Stored Error Code(s) ===
Error Code: P0420
Definition: Catalyst System Efficiency Below Threshold (Bank 1)
Conditions:
Possible Causes:


=== Pending Error Code(s) ===
Error Code: P0420
Definition: Catalyst System Efficiency Below Threshold (Bank 1)
Conditions:
Possible Causes:



Freeze Frame Information:
1. DTC for which Freeze Frame was Stored - P0420.
2. Fuel System 1 Status - Open Loop.
3. Fuel System 2 Status - Not Supported.
4. Calculated LOAD Value - 37.25 %.
5. Engine Coolant Temp - 179.60 °F.
6. Short Term Fuel Trim - Bank 1 - 0.00 %.
7. Long Term Fuel Trim - Bank 1 - -1.56 %.
8. Intake Manifold Absolute Pressure - 11.25 Inhg.
9. Engine RPM - 781.00 Rpm.
10. Vehicle Speed Sensor - 0.00 Mph.
11. Ignition Timing Advance #1 Cylinder - 1.50 °.
12. Intake Air Temperature - 84.20 °F.
13. Absolute Throttle Position - 15.69 %.
14. Oxygen Sensor Output Voltage (B1-S1) - 0.91 V.
15. Short Term Fuel Trim (B1-S1) - 0.00 %.
16. Oxygen Sensor Output Voltage (B1-S2) - 0.61 V.
17. Short Term Fuel Trim (B1-S2) - 99.22 %.
18. Commanded Evaporative Purge - 34.51 %.
19. Fuel Level Input - 53.33 %.
20. Distance since DTC Cleared - 9,219.27 Mi.
21. Barometric Pressure - 29.61 Inhg.
22. Control Module Voltage - 14.00 V.
23. Absolute Load Value - 28.63 %.
24. Commanded Equivalence Ratio - 0.90.
25. Relative Throttle Position - 5.49 %.
26. Absolute Throttle Position B - 15.69 %.
27. Accelerator Pedal Position D - 9.80 %.
28. Accelerator Pedal Position E - 4.71 %.
29. Commanded Throttle Actuator - 7.84 %.


Monitor Information:

1. MIL - ON.
2. Misfire Monitor - Complete.
3. Fuel System Monitor - Complete.
4. CCM Monitor - Complete.
5. Catalyst Monitor - Complete.
6. Heated Catalyst Monitor - Not Supported.
7. EVAP Monitor - Complete.
8. Secondary Air System Monitor - Not Supported.
9. O2 Sensor Monitor - Complete.
10. O2 Sensor Heater Monitor - Complete.
11. EGR Monitor - Complete.
12. NMHC Monitor - Not Supported.
13. Nox Adsorber Monitor - Not Supported.
14. Boost Pressure System Monitor - Not Supported.
15. Exhaust Gas Sensor Monitor - Not Supported.
16. PM Filter Monitor - Not Supported.

Can I get your opinion please?

And thanks!

Mark
 

·
Registered
Joined
·
8 Posts
I bought a 3100 - CanOBD2 Code Reader (CanOBD2.com - Products). When its hooked up to a computer, it reads the information and produces a "report" that you are able to email. I emailed it to myself and just copied and pasted here on the forum.

Does anything look abnormal to you under the "Freeze Frame" information?
 

·
Registered
Joined
·
3,098 Posts
i have the same code. i have an aftermarket exhaust though so i figured it was just from that. the only thing that seems strange to me is that the code is from when the car is standing still. hopefully someone can answer the question
 
1 - 20 of 21 Posts
Top