j22783 Posted January 8, 2004 Share Posted January 8, 2004 I have a 93 Subaru Impreza that started to hesitate and stall intermitently. Sometime it is around a turn at 20 mph sometimes it will hesitate on the the highway and buck a little bit. On multiple occasions it has hesitated so much on the highway that it totally stalls out. And i have to quicking put it in Neutral and start it back up while its rolling down the highway at 70mph. A few times a pulled over and i smelt a sulfur smell. It has new plugs and i put some dry gas in there. I also replaced the ignitor module, as per the request of a few mechanics. That didn't clear up the problem. I just replaced the fuel filter. At no avail. It has 220000. It has always been a dependable car. to me. Has anyone else had this problem before or anyone could help me. Thanks Link to comment Share on other sites More sharing options...
Legacy777 Posted January 8, 2004 Share Posted January 8, 2004 I had a similar problem where my MAF was failing. However the fact you said you have a sulfer smell might indicate a clogged cat converter. Link to comment Share on other sites More sharing options...
j22783 Posted January 9, 2004 Author Share Posted January 9, 2004 I thought it could be a faulty fuel pump. Those MAF sensors are located right where the air filter is, correct? Link to comment Share on other sites More sharing options...
Legacy777 Posted January 9, 2004 Share Posted January 9, 2004 yup...maf sensors are right after the air filter box. Link to comment Share on other sites More sharing options...
dwilliam5 Posted September 6, 2006 Share Posted September 6, 2006 My 93 Impreza is doing something similar. Intermittantly stalls, sometimes at speed, but mostly when I take my foot off the accelerating when approaching an intersection, or just when taking off at the intersection. I get some indication that this might be in store when idling at a light and the idle speed drops to around 250rpms. I did some reading in similar threads on this forum and decided that it must be the maf sensor. I replaced it. But that wasn't it. I saw that others had had a problem with the trottle pedal position sensor. I pulled the cel codes (thought that it hadn't thrown a code due to no check engine light on, but discovered that this was not true after replacing the maf sensor). The codes were 13 and 23. 13 is camshaft position sensor and 23 is the "Throttle Pedal Postion. I'm guessing I should clean the throttle position sensor, or replace it, but thought I would get verification before wading in. Also, I see a couple of sensors at the throttle body. Both on the left side, opposite the throttle cables. One is on top of the intake and appears to be more connected to the throttle (this is the one that I think it is), the other is just below it. Am I right that the top one is the object I should be looking at? What to do about the camshaft position sensor code? Thanks for any help. DW Link to comment Share on other sites More sharing options...
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