Thread: hesitation and engine light ?, please help

So first question, besides your ecu throwing a code and causing check engine light to come on, is there anything that can cause your check engine light to come on. I have a random problem i keep running into where my car will make some ticking noises and then engine light comes and car like wont let me go, like i should be going like 30 or so and will be going like 5 constant gas going back and forth. i got rid of all my codes except for my rear o2 sensor but thats causing this problem, i have been driving for like 3 months with no problems and all of sudden this. i have a 98 200sx with 1.6 to sr20ve swap nistune. i drove to work fine today but on the way home boom. really frustrating, if anyone has had this problem please help thanks

What codes do you get? The knock sensor will throw a code, but not light up the CEL.

cel? im assuming that the cluster? no i got rid of my knock sensor code. only one i have left know is the rear o2 but thats not causing my issue.

Sounds like missfire or detonation ? Like a 'Pinging' sound ? As posted above what code are you getting ? . If you are getting o2 codes i would look into those first . What o2 code is it ...Bank 1 heater ,bank 1 lean ,bank 1 rich . ? More info

no my mechanic its not misfire or detonation. bank 1 sensor 2 i believe but im pretty sure thats not the problem, i drove my car like 25 plus mile yesterday and hasnt shut off yet so im problem is fixed will get back with everyone. the newest things i did was resist the egr temp sensor and redo some grounding wires. thanks