247_c2c

Hey everyone I just rebuilt my sr it starts up and everything but when I try and rev it up it doesn't go past 3500 rpm it just pops and like the engine does out but doesn't turn off... I pulled the cas off and set that but when I did that the timing links didn't match up to the marks on the cam anymore... Would I have to pull it all apart again and set everything over? I really hope I don't have to because I would haw to pull the engine out to get to it... Please if anyone has run into this problem let me know ASAP! Thanks in advance!

slow40sx

you just have to put it at top dead center, line the little pin sticking off the front cover up with the 2nd mark from the left on the crank pulley and then set the cas to the dot closest to the assembly and restab it and the not going over 3500 sounds like a MAF sensor issue

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Hellother

Why do you have to pull the motor to set timing? and yea the 3500 and running rich is maf all day

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247_c2c

Well I would have to take off the oil pan to take off the front cover... And I disconnected the maf and still won't go past 3500

slow40sx

you don't need to take the front cover off you misread what i said, there is a little pin sticking off the front of the front cover right over the crank pulley, u just rotate the crank until the pin lines up with the correct mark on the crank pulley it self, not wrenching required

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slow40sx

and if you unplug the maf and it has no effect that means it is either a bad maf of bad maf wiring

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247_c2c

Well how would I know that the gold link is on the timing mark on the crank gear?

slow40sx

if you installed everything properly, when you roll it over to top dead center everything should be lined up, if not then you fucked up when you assembled it

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slow40sx

but if it runs smooth just rich and won;t go past 3500 then your timing was fine, its your maf

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247_c2c

Well I did but when I took off the valve cover to check the cas and make sure is was good the two top marks and links are off by two teeth

247_c2c

Idk if it's running Rich but it idles smooth

slow40sx

was it at top dead center when you checked it?

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247_c2c

Yea I turned it over twice just to make sure

blueshark123

Change your fucking mafs. damn just listen to people. Your timing may be off also but the 3500 rev limit is ur maf

slow40sx

you lined the crank pulley up at top dead center and then pulled the valve cover off to find that the cams were both off 2 teeth?

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RhdjokerNJ

maf sensor its running in limp mode right now.. check voltage going to the maf sensor. it might be the sensor or the wires to the sensor.

247_c2c

Slow40sx yea

247_c2c

Rhdjokernj would you happen to know what voltage is supposed to be at the maf?

RhdjokerNJ

should be 12v going to it. idk which maf u have but one wire should have 12v going to it.

with my old coupe i had a rb20 in it and the 12v wire had resistance somewhere along it and only gave 8v to maf so i had to rewire that wire from the ecu to maf

slow40sx

then put it at TDC, pull the cam gears and set the chain on them properly and put them back on the cams, problem solved, aslong as you make sure it stays at TDC the whole time

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slow40sx

well, timing problem solved, you still have a MAF issue

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247_c2c

Well I just pulled off the maf when it was running and it idles higher and a Lil smoother when I plugged it back in the car dropped in idle and was a Lil bit rougher them when it wasn't plugged in

247_c2c

Just checked voltage and it's getting 10.46v to the maf

S14DB

What's the voltage on the sensor line of the maf?

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Comments should be taken as Opinions not as Statements of Fact

247_c2c

10.46v is on the harness

S14DB

There are 3 lines on the maf. Power, Ground and Sensor.

You are saying you have 12v, 0v, 10.46v?

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Comments should be taken as Opinions not as Statements of Fact

247_c2c

I have 0v 0v 10.46v

S14DB

With the maf connected?

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Comments should be taken as Opinions not as Statements of Fact

247_c2c

When it's connected I'm getting .85volts 45.5mv 10.46volts

S14DB

With ignition on or engine running?

__________________
Comments should be taken as Opinions not as Statements of Fact