Toyota (Denso) electronic ignition module

[zero]

Does anybody here have a good understanding of the differences in the ignition modules over the years?

I was at a junkyard recently stripping a Dolphin motorhome. I was told the owner was vacationing and the ignition module died. Local shop wanted near $600 to fix it - so they junked the motorhome.

That got me thinking. I decided I wanted to have a spare with me in case mine died out in the middle of nowhere. My Toyota is 34 years old. So - I checked around. Many new modules available either OEM from Toyota overstock - or from aftermarket. The lowest I found were around $300.

Then I came across a close-out "obsolete part" sale for a Beck Arnley (made in Japan) module for a 1979 Toyota Corolla with a 2.2. I have a 1978 truck with a 2.2. The new Beck Arnley was $57! So I took a chance and bought one. Looks the same as my old one, plugs right in and the engine runs fine. That has me wondering what the heck the difference is? In my case, I stuck the original 34 year old module back in and now have that new one as a spare to keep with me.

1978 truck with 2.2:

AIRTEX / WELLS Part # 6H1293{#6H1288, 88921628, 8962014120, 8962014121, 8962035040, 8962035041, 8962035051, 8962035H92, JA1040, JA1133} $271 Rock Auto

STANDARD MOTOR PRODUCTS Part # LX853 {#8962014121, 8962035040, 8962035041, 8962035051, 8962035H92} Intermotor IGNITION CONTROL MODULE $354 Rock Auto

NAPA TP279 $350

1979 truck or Corolla with 2.2

Close-out obolete part - BECK/ARNLEY Part # 1800128 Ign Control Mod/Unit $57 (at Rock Auto)

Note that the NAPA TP279 for $350 is listed for both years and cars and trucks.

[5Toyota]

i take it yours is the no points 1978 in early 1977 they used a different model ing control unit with a points type distributor the points trigred the unit the points would last 50,ooo miles tell the rubbing block wore off the module replaced the old condenser was a good system i have been told the too systems were interchangable as long as you switched the dist also. also with the points dist you coul d put on a condenser if the moduil failed. if i still had the point dist and the coil and module i would give them to you but i dont.feb 1977 corona 20r points nov 1978 truck 20r no points

[5Toyota]

ARE you shure that isnt CORONA NOT COROLLA CORONA USED THE 20R THE COROLLA WAS A LOT SMALLER CAR different eng 20R IN TRUCK. CORONA. CELICA

[zero]

ARE you shure that isnt CORONA NOT COROLLA CORONA USED THE 20R THE COROLLA WAS A LOT SMALLER CAR different eng 20R IN TRUCK. CORONA. CELICA

I got my Toyota "C" words confused. I don't really know one from the other since I've never owned any of them. My 78 is breakerless.

For 1978-1980 Celica

(7901- ) from 197901 uses module 8962035050; 8962035H92, or 8962035051

1974-78 Corona - used module 8962035H92, 8962014120, 8962014121

1979-80 pickup – uses module 8962035060, 8962035H92

[zero]

i take it yours is the no points 1978 in early 1977 they used a different model ing control unit with a points type distributor the points trigred the unit the points would last 50,ooo miles tell the rubbing block wore off the module replaced the old condenser was a good system i have been told the too systems were interchangable as long as you switched the dist also. also with the points dist you coul d put on a condenser if the moduil failed. if i still had the point dist and the coil and module i would give them to you but i dont.feb 1977 corona 20r points nov 1978 truck 20r no points

I'm talking about the control units for breakerless distributors. Toyotas with points don't have any igntion control module. Just a coil and a resistor. They look the same but there are many, many different part numbers. If you go to an OEM Toyota parts list it will make your head spin. Just between 1978 and 1979 for the 20R engine there are 5 different modules listed.

In regard to points lasting 50,000 miles? Yes some could keep an engine running that long - but no set of mechanical breaker-points can hold a steady adjustment or dwell angle for 50,000 miles. In 50K miles those points have opened and closed 50,000,000 times. No set of points on earth can last that long without wear and change.

[zero]

ARE you shure that isnt CORONA NOT COROLLA CORONA USED THE 20R THE COROLLA WAS A LOT SMALLER CAR different eng 20R IN TRUCK. CORONA. CELICA

My Toyota wire-diagram book shows the Corolla for the 1978 USA model still using breaker points and thus no control module. Later Corollas do have a module. E.g. a 1980 Corolla module looks just like the 1978 truck module although I don't know what the internal differences are. I doubt engine size matter. Just having the same number of cylinders. 1980 ICMs are #s 1311001923, 88921690, 8962012190

[5Toyota]

SORRY THE LATER POINT MODELS had a unit on top of the coil CALLED AN IGNITER AND THEY DID NOT USE A CONDENSER old haynes book calls the ingniter an electronic switching circuit. i would agree the number of parts is mind bogeling over the years i have been able switch some parts around and make things work. I DO REMEMBER SEEING THE RESISTER ALSO MOUNTED ON THE COIL