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thebesthonda, ASE MasterTechnician
Category: Acura
Satisfied Customers: 3084
Experience:  26 years experience
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2001 acura cl: engine and tcs light came

Customer Question

hello i have 2001 acura cl and the engine and tcs light came on together after i put silver gas in the car last night ,the milage on the car is 200,222 what do you think
Submitted: 7 years ago.
Category: Acura
Expert:  thebesthonda replied 7 years ago.
Hello and welcome to justanswer. My name is XXXXX XXXXX I can assist you with this.


When your check engine light or TCS indicator comes on a code is stored in the vehicles computer system. This code is vital in troubleshooting the vehicle accurately. To access this code requires a scanner that most any auto repair shop or auto parts store such as Advance or Autozone will have. Most establishments will scan the code for FREE. My recommendation is to have the vehicle scanned and send the code to me. I will take it from there and will be able to better assist you.

Let me know when you get it, take your time.

Customer: replied 7 years ago.



Expert:  thebesthonda replied 7 years ago.


Customer: replied 7 years ago.
i just had it scanned and here are the codes p0302 p0303 p0305 p1676 p1710 p0300 p1399
Expert:  thebesthonda replied 7 years ago.

Thanks. the codes 302, 303,305,300, and 1399 are misfire codes. How long since your spark plugs were replaced?



The code 1676 has a service bulletin. I have it pasted below.


Got DTC P1676 or TCS DTC

31? Replace the Ignition


NOTE: This article applies to '01-03 3.2CLs and

'99-03 3.2TLs.

Got a vehicle in your shop with DTC P1676

(FPTDR signal line failure) or TCS DTC 31 (engine

retard command [PFINH] signal)? A bad ignition

switch (the electrical half) could be the culprit.

NOTE: On the HDS, you'll see TCS DTC 31 listed

as TCS DTC 31-2.

Inspect the ignition switch solder joints for any

signs of overheating. If you notice the solder joints

are melted, replace the ignition switch.


The code 1710 could also be triggered by the 1676 code, so I would take care of it first.

Customer: replied 7 years ago.
what is that?
Expert:  thebesthonda replied 7 years ago.
I'm sorry, are you asking what is the service bulletin?
Customer: replied 7 years ago.
i see your whole answer now!
Expert:  thebesthonda replied 7 years ago.

Oh, ok.


The service bulletin tells us that if you have a trouble code 1676, the ignition switch is likely to be the problem. These have a tendency to melt internally and cause a bad connection. The ignition switch would have to be removed to check for the melted joints. If this is found to be defective, it's around an $80 part from Acura.



As for the misfire codes, do you know how long it has been since the spark plugs were replaced?



Edited by thebesthonda on 7/29/2010 at 4:05 PM EST
Customer: replied 7 years ago.

a few months ago


Expert:  thebesthonda replied 7 years ago.
Were they replaced at Acura? If not, do you know the brand that used?
Customer: replied 7 years ago.
it was done a mechants tire
Expert:  thebesthonda replied 7 years ago.
Look on your receipt and see what brand plugs were used. I have seen issues with non Honda brand plugs.