this set up worked fine previousely.
so after reinstalling my ms and lc-1 with everything grounded properly, 14+ wires soldered into the ground lug, seperated board and pwm + and -.
I get a max lean reading of 16.5 with the engine powered and not running, 3.26v reading on warm up wizard screen o2 raw reading.
with the motor running I cannot get the idle afr reading above 11 with an injector pulse width of 1.1. the sparkplugs are grey and ashy (normal to lean looking). my calculated pulse width @ idle with my new injectors based on my old tune should be 3.5ms
I verified the lc1 output voltage to the ms input pin and ms ground was 5v with the lc-1 on and car not running. looking at the ms schematic the o2 signal has a 1mohm resister to ground and passes through a 1kohm resister. on bench testing just the input circuit, I get 3.26v to the cpu pin in when I put 5v to the o2 sensor in and ground. is this normal input voltage?
I reflashed the firmaware on both the ms and lc-1. rechecked my configurator and ego settings, noticed the switchpoint is 2.509v?
what is wrong??
ms1 v2.2 wideband input 5v, warmup wizard raw o2 3.26v??
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The full forum rules are here: Forum Rules, be sure to read them all regularly.
Read the manual to see if your question is answered there before posting. Many users will not reply if the answer is already available in the manual.
If your question is about troubleshooting, configuration, or tuning, you MUST include your processor type (MS-I or MS-II) and code version in your post. If your question is about PCB assembly or modifications, you must also include the main board version number (1.01, 2.2 or 3.0).
If you have questions about MS1/Extra or MS2/Extra code configuration or tuning, please post them at www.msextra.com Such questions posted here will be moved to: a temporary MSextra sub-forum, where they will be removed after 7 days
The full forum rules are here: Forum Rules, be sure to read them all regularly.
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Matt Cramer
- Super Squirter
- Posts: 2951
- Joined: Sat Jul 03, 2004 11:35 am
Re: ms1 v2.2 wideband input 5v, warmup wizard raw o2 3.26v??
Does the LC-1 reading in MegaTune match the readings you get if you connect to the LC-1 with LogWorks?
