Need some help timing a 22REC

1050 Views 3 Replies 2 Participants Last post by sandman608, Sep 8, 2010

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Discussion Starter · Sep 5, 2010

I have a 1987 Toyota RV with a 22RE motor with EFI...I Have not had it long and spun a bearing while driving it...I pulled the motor out and rebuilt it...I finally got it running and when I try to time it with a timing light i cant get it below 18 degrees without it stalling...I am aware its supposed to be at 5 degrees...I have done some reading on here about what to do...But I am still not having any luck...I have the ECM jumpered and I am getting codes but I still cant get the timing right...I checked the timing chain and it looks to be set correctly...I have read about setting the TPS but I never messed with it when I took the engine out...I took it out for a drive and it seems very sluggish as I can only go about 50 MPH where normally this RV will do 65-70 MPH

When I hit the throttle there is a bit of hesitation but I dont hear or feel a misfire...I just dont know alot about this engine and I am used to working more on American cars...If anyone has any step by step instructions on what I should to to try to get this timed right I would appreciate it! Thanks

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sandman608

· #2 · Sep 8, 2010

Do you have the Dist. adv. as far as you can go in the CCW direction. if so you may be off by one tooth on the Dist. also have you checked to see what codes you are getting?

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Discussion Starter · #3 · Sep 8, 2010

sandman608 said:
Do you have the Dist. adv. as far as you can go in the CCW direction. if so you may be off by one tooth on the Dist. also have you checked to see what codes you are getting?

I have tried the distributor several different ways...and no matter what i do i cant get the timing close to 5 degrees...It runs at what looks like at least 20 because the mark only goes to 12 and its way past that...I am getting codes 4,11,12...Is the jumper for the codes the same as one as for the timing? Because when I jumper it the engine light starts to blink but the idle doesnt change at all which I have read is supposed to

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sandman608

· #4 · Sep 8, 2010

Yes they are the same.Do you have an Ohm's meter? If not try to barrow one preferably a digital one their easy to read\use then check the T.P.S between fully closed then WOT @ the VTA and E2 terminals. Closed the VTA - E2 should beetween 0.2-0.8 ohms then WOT it should be 3.3-10 K Ohms. But first does it run fine between idle and WOT if so check that your knock sensor is plugged in and make sure the wire from the knock sensor to the ECU is good by doing a continuity test or just try to unplug the sensor then test drive it again so it wont tell the computer to advance you timing. your codes are as follows 4-water thermo sensor signal, 11- Swith Signal "T.P.S" , 12- Knock Sensor hope that helps. http://www.4crawler.com/4x4/CheapTricks/index.shtml#Top this is a good link to the TPS adjustment

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