Timing help....cant go below 15 BTDC

[spinningheadboy]

Trying to time my 7mgte after replacing the theromostat housing gasket.

I followed the TSRM and found TDC with the cams aligned and crank mark at zero with cam under the oil cap in the proper position. I even seen the pictures of the cps and its in position. Car starts and runs fine, but I can't get the timing to 10 degrees with the jumper wired in the dianogtic thingy. Actually the jumper does nothing for the timing, the car just idles at around 1100 rpm in "N" and can't be adjusted lower the 15 degrees btdc. Any suggestions?

Regards,
Chris

 

[suprahooked]

Sounds like your cps is 1 tooth off.

 

[jetjock]

Codes? Like maybe a 51? Or are you saying you run out of CPS adjustment?

 

[spinningheadboy]

Codes? Like maybe a 51? Or are you saying you run out of CPS adjustment?

I'm out of cps adjustment. The other part is that the jumper does nothing that I can see, jumped or not.

Chris D.

 

[spinningheadboy]

Just reading another site and says that the TPS must be working and set correctly for base timing to work at the ECU. Looks like I'm going to test the TPS.

cwd

 

[jetjock]

I asked about codes. No can read? If you're out of adjustment the problem (and solution) should be obvious.

 

[spinningheadboy]

I asked about codes. No can read? If you're out of adjustment the problem (and solution) should be obvious.

No codes. Would you agree about the TPS?

Chris

 

[jetjock]

Sigh. Another rote monkey. Must be from all that head spinning. Consider this: if the CPS didn't have the bracket and the wires were long enough to spin it throughout 360 degrees do you think it could solve the problem?

 

[spinningheadboy]

Thanks for being a dick. Moving on with more rote monkeys.

This is the first time I've ever had my CPS out or needed to adjust it. My CPS is set up exaxctly to TSRM specs and verified with two pictures of reference. My TPS is way out of adjustment and I have reset it with feeler gages and a test meter. If you care, I'll let you know how it turns out.

Yes, I understand what spinning the CPS would do.
When I first started the car cold, I could set it at 10 BTDC, but that went away about 40 seconds into my timing effort. I'm betting on the ECU adjusting my timing to the lack of of a proper TPS reading.



Chris D.

 

[jetjock]

This dick will take that bet because if the TPS wasn't set correctly you'd have a code. It's why I asked. See, I've forgotten more about the ECU than you'll ever know.

"My CPS is set up exactly to TSRM specs and verified with two pictures of reference"? Lol well, that's what rote monkeys do. They blindly follow instructions without any understanding as to why the instructions say something must be done. They're usually incapable of independent thought and have poor critical thinking skills.

If you understood how your ignition system worked you wouldn't have needed instructions (let alone photos) to install the CPS properly. Actually I have no idea why you set # 1 to TDC in the first place if all you did was remove the t-stat housing. All that was needed was mark the CPS and reinstall it in the same position. Had you done that we wouldn't be having this little conversation. But no, you thought turning the crankshaft back to zero was required because that's what the book said. Rote monkey business in all it's glory.

Then you fail to connect the problem with the last thing you screwed with. Instead you go off on a TPS tangent. In fact you're still on one. A fine example of critical bean using skills there eh? Especially when one looks at the obvious evidence. Ah well, at least in this community you're far from alone. Enjoy...bananas are on the house.

 

[mattjk]

lol, are you connecting the timing gun to wire #6 or something? Is it an advancing type gun?, if not it's definitely a tooth off.

You should probably listen to JJ, because you're definitely doing something wrong.

 

[spinningheadboy]

Car is fixed. Left the CPS alone and fixed the out of adjustment TPS. Once the TPS with adjusted to specs, the timing was easy to set at 10 degrees with the jumper attached. Before with the bad TPS, the CPS could turn no further to fix my timing issue, once the TPS was fixed I had more than enough room to adjust the CPS properly without removal, or backing it a tooth.

The reason I had to reset the CPS is because I had to take it off to remove the T-stat housing in the first place(which had a major leak).

I also marked the CPS when I removed it and when I reinstalled it it was off (Yes, I messed it up). Instead of playing with the CPS and trying to move it back a notch, I just performed a TDC of the engine and reset the CPS as the book says (I have a factory shop manual) I fixed this problem without any of your advice, JJ. I was really looking for suggestions and some help. Thanks for the advice.

Chris D.

 

[jetjock]

I remain confused by the whole CPS thing. If you didn't want to take it back out after installing it wrong using your mark didn't it occur you'd have to take it back out anyway after turning the crank? It's more work to end up doing the same task. Makes no sense unless you were blindly following the manual.

As I said I know a thing or two about the ECU. Enough to know you've resorted to something I'd hoped you wouldn't. Funny how you could end up with an open IDL contact (what prevents initial timing from being set) and yet report no code for it even when asked. Guess your ECU must be programmed differently from all the others...

Just reading another site and says that the TPS must be working and set correctly for base timing to work at the ECU.

Which site was that pray tell?

 

[spinningheadboy]

Car is fixed. Thanks again.

Chris D.
Boise